A heat rash, also known as prickly heat or miliaria, is a common skin condition that occurs when sweat becomes trapped in the skin’s sweat ducts, leading to inflammation and the appearance of small, red, itchy bumps on the skin. Heat rash typically occurs in hot and humid weather or when the skin is covered with tight or non-breathable clothing that hinders the evaporation of sweat.
The main features of a heat rash
- Heat rash usually presents as tiny, raised bumps on the skin. These bumps can be red, pink, or flesh-coloured and are often clustered together
- The affected area may be itchy, and scratching can exacerbate the irritation
- Heat rash commonly appears in areas where skin-to-skin contact or friction occurs, such as the neck, chest, armpits, groin, back, and areas covered by clothing
- Unlike some other skin conditions, heat rash does not have pustules or blisters with pus or fluid inside
Treatment tips for heat rash
- Try to minimise ambient heat and humidity where possible
- Wear loose-fitting clothing that easily wicks away sweat
- Use lighter creams and gentle foaming cleansers versus very oily or occlusive ones
- Use a thermal spring water spray to soothe inflammation
Skincare ingredients that can help with heat rash
- Thermal Spring Water
- Bisabolol
- Niacinamide
- Ceramides
- Panthenol
- Aloe Vera
- Centella Asiatica
Skincare products that can help with heat rash
Using products to treat a heat rash can help alleviate discomfort, reduce inflammation, and promote the healing process. While heat rash typically resolves on its own once the affected area is allowed to cool and dry, certain products can provide additional relief and support. Dr Webster recommends: