Heat Rash/　Prickly Heat：Symptoms, Causes, Treatment

What are the symptoms of heat rash?

Heat rash, also known as prickly heat or miliaria, typically presents with the following symptoms:

1. Red Bumps or Blisters: Small red bumps or blisters appear on the skin, often in clusters. These bumps may be filled with fluid.
2. Itching or Prickling Sensation: The affected area may feel itchy or prickly, hence the name “prickly heat.”
3. Redness: The skin around the bumps may be red and inflamed.
4. Pain or Discomfort: The rash can cause discomfort, especially when it becomes irritated by clothing or sweating.
5. Location: Heat rash commonly occurs in areas where sweat gets trapped and the skin is prone to friction, such as the neck, chest, back, armpits, groin, and under the breasts.
6. Mild Swelling: There may be mild swelling in the affected area.

Heat rash is more common in hot, humid weather and can affect people of all ages, including infants. It usually resolves on its own once the skin is cooled and kept dry. However, if the rash persists or becomes infected, medical attention may be needed.

What is the treatment for heat rash?

Treatment for heat rash focuses on relieving symptoms and preventing further irritation. Here are some steps to manage heat rash effectively:

1. Cooling the Skin: Keep the affected area cool and dry. Move to a cooler environment with adequate ventilation or use fans to help air circulation.
2. Loose Clothing: Wear lightweight, loose-fitting clothing made of breathable fabrics like cotton to allow air circulation and minimize friction on the skin.
3. Avoiding Sweat Build-Up: Try to avoid activities that may lead to excessive sweating, and if sweating occurs, gently pat the skin dry with a soft towel.
4. Calamine Lotion or Oatmeal Baths: Applying calamine lotion or taking cool oatmeal baths can help soothe itching and reduce inflammation.
5. Topical Treatments: Use over-the-counter hydrocortisone cream or antihistamine creams to relieve itching and redness. Consult with a healthcare provider before using these on infants or young children.
6. Avoiding Harsh Products: Avoid using heavy lotions, creams, or oils on the affected area as these can block sweat ducts and worsen the rash.
7. Hydration: Drink plenty of fluids to stay hydrated, which can help regulate body temperature and reduce the likelihood of heat rash.
8. Monitor for Infection: Keep an eye on the rash for signs of infection, such as increased redness, swelling, warmth, or pus. If infection is suspected, seek medical advice promptly.

Most cases of heat rash resolve within a few days with these self-care measures. However, if the rash persists, spreads, or causes significant discomfort, it’s advisable to consult a healthcare professional for further evaluation and management.