Itchy Red Patches On Both Arms That Get Worse After Hot Showers, Is It Eczema?

Itchy, dry, red patches that get worse with hot water and sweat are often caused by eczema (dermatitis). They can also be a reaction to a new soap, washing powder or fabric. Less often, patches like these are caused by a fungal infection or psoriasis, which need different treatment.

Use lukewarm water instead of hot, keep showers short, and put on a thick, fragrance-free moisturizer right after you dry off. Switch to a gentle, unscented soap and try not to scratch. If the patches do not improve in two weeks, are spreading, have a ring shape, are oozing or very painful, see a dermatologist so they can look at the skin and suggest the right cream.