Prickly Heat Rashes : Causes and 12 Quick Treatments

Prickly heat rash, also known as miliaria, is a common skin condition caused by blocked sweat glands, leading to discomfort and irritation. It often occurs in hot, humid weather when the body sweats excessively. The rash typically appears as small, red, and itchy bumps or blisters on the skin, most commonly in areas where sweat accumulates, such as the back, neck, chest, and underarms.

Prickly heat rashes are primarily caused by the obstruction of sweat glands, which leads to the inflammation and irritation of the skin. This blockage occurs when sweat is trapped beneath the skin due to several factors. The most common causes include:

1. Hot and Humid Weather: High temperatures and excessive humidity increase sweating, which can overwhelm sweat glands. When sweat ducts become clogged, sweat cannot reach the surface and starts to accumulate beneath the skin, leading to prickly heat rash.

2. Tight or Non-Breathable Clothing: Wearing tight clothing or garments made of synthetic, non-breathable fabrics can trap sweat and heat against the skin. This creates an environment where sweat ducts are more likely to become blocked, causing irritation and rash.

3. Excessive Sweating: Engaging in intense physical activity or exercising in hot weather can lead to excessive sweating. If the sweat glands are unable to cope with the increased production of sweat, it can result in prickly heat rash.

4. Inadequate Ventilation: Environments with poor air circulation or high humidity can exacerbate sweating and heat buildup around the skin. This can contribute to the clogging of sweat ducts and the development of the rash.

5. Immature Sweat Glands in Infants: Infants are particularly susceptible to prickly heat because their sweat glands are not fully developed. Their skin is more prone to blockages, especially in hot and humid conditions.

6. Overheating: Situations where individuals are exposed to high temperatures for extended periods, such as during prolonged sun exposure or in overheated indoor spaces, can increase the likelihood of developing prickly heat rash.

7. Certain Medical Conditions: Conditions that lead to excessive sweating or affect sweat gland function, such as hyperhidrosis or certain metabolic disorders, can make individuals more prone to prickly heat.

8. Inappropriate Skincare Products: Using thick or occlusive skin care products that do not allow the skin to breathe properly can also contribute to sweat gland blockage and irritation.

By understanding these causes, individuals can take steps to minimize their risk of developing prickly heat rash. Treating prickly heat rashes at home can help alleviate discomfort and promote faster recovery. Here we have some best and quick home remedies to treat prickly heat rashes at home.

12 Home Remedies to Treat Prickly Heat Rashes

1. Cold Water Compress

Applying cool compresses can be very effective in alleviating the symptoms. It provides immediate cooling relief, reduces itching and inflammation, and soothes the skin. Make sure the compress is not too cold to avoid skin irritation.

• (i) Fill a bowl with cool or cold water.
• (ii) Soak a clean cloth or towel in the water.
• (iii) Wring out excess water so the cloth is damp but not dripping.
• (iv) Gently apply the damp cloth to the affected area for 10-15 minutes.
• (v) Repeat as needed, ensuring the cloth remains cool.

2. Aloe Vera

Aloe vera is an excellent natural remedy for prickly heat rashes due to its soothing, anti-inflammatory, and moisturizing properties. Aloe vera provides a natural cooling sensation, which can help alleviate the discomfort associated with prickly heat rashes. It reduces inflammation and redness, helping to calm the irritated skin. Aloe vera hydrates the skin without making it greasy, which can help prevent further dryness or irritation. It promotes skin repair and can speed up the healing process of the rash.

• (i) Extract the gel from fresh aloe vera leaf.
• (ii) Chill the extracted gel in the refrigerator for an added cooling effect .
• (iii) Gently apply a thin layer of the chilled aloe vera gel directly to the affected area of the rash.
• (iv) Allow the gel to remain on the skin for 10-15 minutes.
• (iv) Rinse off the gel with cool water and pat the area dry with a soft cloth.
• (v) Apply aloe vera gel 2-3 times a day, or as needed, to keep the rash cool and comfortable.

3. Baking Soda Paste

Baking soda paste is another effective remedy for soothing prickly heat rashes. Baking soda has properties that can help reduce itching and inflammation. Baking soda can help neutralize acids and reduce itching. It has a mild anti-inflammatory effect that can soothe irritated skin. It helps absorb excess moisture, which can be beneficial if sweating contributes to the rash. Baking soda can gently exfoliate and cleanse the affected area.

• (i) In a small bowl, mix 1-2 tablespoons of baking soda with enough water to form a thick paste.You want the consistency to be spreadable but not too runny.
• (ii) Gently apply a thin layer of the baking soda paste directly to the affected areas of the rash.
• (iii) Avoid applying the paste to open or broken skin as it can cause irritation.
• (iv) Allow the paste to sit on the rash for 10-15 minutes. This gives the baking soda time to soothe the area and help with itching.
• (v) After the paste has dried, rinse it off with cool water.
• (vi) Pat the area dry with a soft towel, being careful not to rub or irritate the skin further.
• (vii) Use the baking soda paste 1-2 times a day or as needed for relief.

4. Apple Cider vinegar

Apple cider vinegar (ACV) is a popular natural remedy for various skin issues, including prickly heat rashes. It has properties that can help soothe the skin and alleviate discomfort. ACV has mild anti-inflammatory properties that can help reduce redness and swelling associated with rashes. It has natural antiseptic qualities that can help prevent infection, especially if the rash is scratched or compromised. ACV can help restore the skin’s natural pH balance, which may be disrupted by sweating or irritation. The cooling effect of diluted ACV can provide immediate relief from itching and discomfort.

• (i) Mix 1 part apple cider vinegar with 3 parts water. For example, if you use 1 tablespoon of apple cider vinegar, mix it with 3 tablespoons of water.
• (ii) Soak a clean cotton ball or pad in the diluted ACV solution.
• (iii) Gently apply it to the affected areas of the rash.
• (iv) Allow the solution to remain on the skin for 5-10 minutes. You may feel a mild tingling sensation, which is normal.
• (v) After the application time, rinse the area with cool water to remove the vinegar.
• (vi) Pat the skin dry with a soft towel, being careful not to rub or irritate the rash.
• (vii) Use the diluted ACV solution 1-2 times a day as needed for relief.

ACV Bath (Alternative Method):

• (i) Fill your bathtub with warm water (not hot).
• (ii) Add 1-2 cups of apple cider vinegar to the bathwater.
• (iii) Soak in the bathwater for 10-15 minutes. This can help soothe the entire body if the rash is widespread.
• (iv) Rinse off with cool water if desired.
• (v) Pat your skin dry with a soft towel.
• (vi) Use ACV bath 1-2 times a day as needed for relief.

5.  Cucumber

Cucumber is a refreshing and soothing remedy for prickly heat rashes. Its natural properties can help alleviate discomfort and support skin healing. Cucumber has a natural cooling property that can help reduce the heat and discomfort associated with prickly heat rashes. It contains antioxidants and anti-inflammatory compounds, such as cucurbitacins and flavonoids, which help reduce redness and swelling. Cucumbers have high water content, which helps to hydrate and soothe the skin, preventing further dryness. The mild nature of cucumber can calm irritated skin and reduce itching.

• (i) Choose a fresh cucumber. Wash it thoroughly to remove any dirt or pesticides.
• (ii) Chill the cucumber in the refrigerator for a more intense cooling effect.
• (iii) Peel the cucumber and chop it into pieces.
• (iv) Blend the cucumber pieces until smooth to create a puree. Alternatively, you can use a juicer to extract cucumber juice.
• (v) For juice, soak a clean cotton ball or pad in the cucumber juice and gently apply it to the rash.
• (vi) For puree, apply a thin layer of the cucumber puree directly to the rash.
• (vii) Let the cucumber juice or puree sit on the affected area for 10-15 minutes.
• (viii) Rinse off with cool water and pat the area dry with a soft towel.
• (ix) You can use cucumber juice or puree 1-2 times a day, or as needed, for relief.

6. Witch Hazel

Witch hazel is a natural astringent that can be effective for managing prickly heat rashes. Its properties help to soothe the skin, reduce inflammation, and alleviate discomfort. Witch hazel acts as an astringent, which means it helps to tighten the skin and reduce swelling and inflammation.
Anti-Inflammatory: It contains compounds like tannins that have anti-inflammatory effects, which can help calm irritated skin and reduce redness. Witch hazel provides a cooling sensation that can relieve itching and discomfort associated with prickly heat rashes. It has mild antiseptic properties that can help prevent infection if the rash is scratched or compromised.

• (i) Soak a clean cotton ball or pad in witch hazel extract.
• (ii) Gently apply the witch hazel-soaked cotton ball or pad to the rash.
• (iii) Let the witch hazel dry on the skin.
• (iv) You can do this 2-3 times a day, or as needed, to relieve symptoms.

7. Mint Leaves

Mint leaves, particularly those from the peppermint plant, can be a soothing remedy for prickly heat rashes. Mint contains menthol, which provides a natural cooling sensation that can help relieve the burning and itching associated with prickly heat rashes. The anti-inflammatory properties of mint can reduce redness and swelling, calming irritated skin. Mint helps to soothe the skin and alleviate discomfort, making it a pleasant and refreshing remedy.

• (i) Wash a handful of fresh mint leaves thoroughly to remove any dirt or pesticides.
• (ii) Gently crush the mint leaves to release their natural oils. You can do this using a mortar and pestle or the back of a spoon.
• (iii) You can apply the paste of crushed mint leaves to the affected areas or place the crushed mint leaves in a clean cloth or gauze and wrap it to create a small compress.
• (iv) Soak the mint-filled cloth in cool water.
• (v) Apply the cool mint compress to the affected areas of the rash for 10-15 minutes.
• (vi) Finally remove it and pat the skin dry with a soft towel.

8. Yogurt

Yogurt is a versatile and soothing remedy for prickly heat rashes due to its cooling and anti-inflammatory properties. Yogurt provides a natural cooling sensation, which helps relieve the burning and itching associated with prickly heat rashes. It contains lactic acid, which can help reduce inflammation and redness in the affected skin. Yogurt is hydrating and can help prevent dryness and flakiness in the skin. The probiotics in yogurt can help soothe irritated skin and promote healing.    

• (i) Use plain, unsweetened yogurt without added flavors, sugars, or artificial ingredients. Greek yogurt is also a good option due to its thick texture and high probiotic content.
• (ii) Clean the affected area of the rash with cool water and pat dry with a soft towel.
• (iii) Gently apply a thin layer of yogurt directly to the rash using clean hands or a spatula.
• (iv) Let the yogurt sit on the rash for 15-20 minutes. This allows the yogurt to provide its cooling and soothing effects.
• (v) After 15-20 minutes, rinse off the yogurt with cool water.
• (vi) Pat the area dry with a soft towel, avoiding rubbing which can irritate the skin.
• (vii) Apply yogurt directly to the rash 1-2 times a day or as needed for relief.

9. Epsom Salt

An Epsom salt bath can be a soothing remedy for prickly heat rashes.Epsom salt contains magnesium sulfate, which can help reduce itching and irritation associated with prickly heat. The magnesium can soothe the skin and provide relief from discomfort. Epsom salt can help absorb excess moisture from the skin, which is beneficial since prickly heat often results from blocked sweat glands. Drying out the affected area can help speed up the healing process. Magnesium has anti-inflammatory properties that may reduce redness and swelling in the affected areas.The gentle abrasive action of Epsom salt can help exfoliate the skin, which might aid in clearing clogged sweat glands.

• (i) Fill your bathtub with warm (not hot) water.
• (ii) Dissolve about 1 to 2 cups of Epsom salt in the bathwater. Stir the water to ensure the salt is fully dissolved.
• (iii) Soak in the bathwater for about 15-20 minutes. Avoid scrubbing or rubbing the skin too hard.
• (iv) After soaking, rinse off with clean water and gently pat your skin dry with a soft towel. Avoid rubbing the skin to prevent further irritation.
• (v) You can use an Epsom salt bath 2-3 times a week or as needed based on the severity of the rash.

10. Green Tea bags

Using green tea bags for prickly heat rashes can be a soothing and effective remedy. Green tea contains antioxidants like catechins, which have anti-inflammatory effects. This can help reduce redness and swelling associated with prickly heat. The coolness of green tea bags can provide immediate relief from itching and discomfort. Green tea is rich in antioxidants that can promote healing and overall skin health. Green tea has mild antibacterial properties, which can help reduce the risk of secondary infections in irritated skin.

• (i) Boil a cup of water and steep 2-3 green tea bags in it for about 5 minutes.
• (ii) Remove the tea bags and let them cool down to a comfortable temperature. You can speed up the cooling process by placing the tea bags in the refrigerator for a few minutes.
• (iii) Gently place the cooled tea bags directly on the prickly heat rash. Leave them on for about 10-15 minutes. You can also gently press them against the rash.
• (iv) After removing the tea bags, rinse the area with cool water and pat dry with a soft towel. Avoid rubbing the skin to prevent further irritation.
• (v) You can apply green tea bags 2-3 times a day as needed for relief.

 Green Tea Soothing Compress (Alternative Method)

• (i) Boil a cup of water and steep the green tea bags for about 5 minutes. Remove the tea bags and let the tea cool to room temperature or chill it in the refrigerator for a few minutes.
• (ii) Soak a clean cloth or washcloth in the cooled green tea.
• (iii) Wring out the excess liquid from the cloth and place it gently over the rash.
• (iv) Leave it on for about 10-15 minutes. The cloth will deliver the benefits of the green tea directly to the rash while providing a soothing effect.
• (v) After removing the compress, rinse the area with cool water and pat it dry with a soft towel.

11. Neem Leaves

Neem leaves are well-known in traditional medicine for their various skin benefits. They can be quite helpful for treating prickly heat rashes. Neem has strong anti-inflammatory properties that can help reduce redness, swelling, and irritation associated with prickly heat. Neem leaves have natural antiseptic and antibacterial properties, which can help prevent infections in irritated skin and promote healing. Neem leaves have a cooling effect that can help alleviate the itching and discomfort often associated with prickly heat.Neem can help detoxify the skin by removing impurities and reducing the risk of further irritation.

• (i) Take a handful of fresh neem leaves and grind them into a fine paste using a little but cold water. If using dried neem powder, mix it with cold water to create a paste.
• (ii) Apply the neem paste directly to the affected areas of the skin.
• (iii) Allow the paste to sit on the rash for about 15-20 minutes.
• (iv) Rinse off the paste with cool water and gently pat the skin dry with a soft towel.
• (v) You can use neem remedy 2-3 times a day as needed for relief.

12. Fuller's Earth (Multani Mitti)

Fuller's Earth, also known as Multani Mitti, is a natural clay with a range of beneficial properties that can be helpful for prickly heat rashes. Fuller's Earth has a natural cooling effect on the skin, which can help soothe the burning and itching sensations associated with prickly heat rashes.It effectively absorbs excess sweat and oil from the skin, which can help reduce the occurrence of prickly heat. This is particularly useful in hot and humid conditions where sweat can exacerbate rashes. The clay has anti-inflammatory properties that can help reduce redness and swelling in the affected area. Fuller's Earth has natural cleansing properties that help remove impurities and toxins from the skin, which can aid in faster healing. Regular use can improve overall skin texture and prevent further irritation by keeping the skin dry and clean.

• (i) Take some Fuller's Earth and mix with water to form a thick paste.
• (ii) Apply it directly to the affected area and leave it on until it dries.
• (iii) Rinse off with cool water.
• (iv) This can be done a few times a day for quick relief.

Some Preventive Measures and Important Tips

• (i) Before applying any new remedy to your skin, first perform a small patch test on a small area of your skin to ensure there is no adverse reaction.
• (ii) Avoid scratching because this may introduce germs into the deeper layers of the skin that may worsen the condition.
• (iii) Avoid hot and humid environment and try to stay in cool environment.
• (iv)Opt for loose-fitting, light-colored, and breathable fabrics like cotton that allow sweat to evaporate easily.
• (v) Choose light, non-oily skincare products that won’t clog your pores. This helps prevent irritation and allows your skin to breathe.
• (vi) If using talcum powder or other powders, ensure they are applied sparingly and do not create a thick layer that could trap sweat.
• (vii) Usually prickly heat rash disappears within a week by using above natural home remedies. However, if you don't get relief within a week or if some kind of skin infection (pus, oozing, white or yellowish fluid, increased pain, swelling) develops, you should consult your problem with a medical doctor.