What should you know about hot weather skin rash?

Tiny itchy or prickly bumps after sweating can fit heat rash, especially where clothing traps warmth. Redness and soreness in skin folds may reflect intertrigo, while a ring-shaped, scaly patch can suggest ringworm. New products, plants, medicines, or fabrics may cause contact dermatitis. Atopic dermatitis and psoriasis can also become more irritated in hot, humid conditions. Scabies often causes intense itching and can spread to close contacts, so its pattern and timing matter.

Move to a cooler place, rinse sweat from the skin with lukewarm water, and pat dry rather than rubbing. Wear loose, breathable clothing and change damp garments promptly. Avoid scratching, heavy ointments over sweaty areas, fragranced products, and tight straps until the skin settles. A pharmacist or clinician can advise whether a suitable soothing product or treatment is appropriate, particularly for a child, pregnancy, broken skin, or a rash after a new medicine.

Arrange medical advice if the rash is spreading, painful, oozing, crusted, recurrent, or not improving after cooling and gentle skin care. Seek urgent help for facial swelling, trouble breathing, faintness, rapidly blistering skin, purple or bruise-like spots, fever with a very unwell feeling, or involvement of the eyes or mouth.

Could this be heat rash, an infection, or a flare of another condition? Which products should I stop or use? What signs would mean I need urgent review?