Heat rash typically lasts from a few days up to about three weeks, depending on severity and treatment.
- Most commonly, heat rash clears up on its own within 2 to 3 days once the skin is cooled and sweating is reduced
- In some cases, especially more severe heat rashes, it can last a week or longer, and up to 3 weeks has been reported
- Heat rash usually improves quickly with cooling measures and avoiding heat and humidity. If the rash persists beyond a week or worsens, medical advice should be sought
- Treatment focuses on keeping the skin cool and dry, using soothing lotions like calamine, and sometimes steroid creams or antibiotics if infection occurs
In summary, heat rash generally resolves within a few days but can last up to three weeks in some cases. Cooling the skin and avoiding excessive sweating are key to recovery. If symptoms persist or worsen, consult a healthcare provider.
