My son who is 24 years has a rash on his back, and arms. It s red and somewhat itches. He went running outside today and it s very hot and humid here. After he took a shower it seemed it make it worse. It s on his back and he has been carrying around a backpack for his work commute. What can I tell him to relieve his symptoms? Thanks you
Hello, I have gone through your complaint, and it seems to be an Acne form eruption. It could be related to hot humid weather and his age.  I would recommend you to apply Benzoyl Peroxide 5 per cent gel on the affected areas once daily and take antihistamines like tablet Cetirizine once daily. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.