A small inflamed bump with a slight pain and itchiness is caused by certain irritants and allergens leading to red patches which can be a sign of eczema, psoriasis, or hives in some rare cases.

Whether your rash is itchy, bumpy, red or blistering, it's important to know what's causing it — and how serious it is. But with so many types of skin rashes, it can be tough even for ...