Allergic dermatitis can cause an itchy, red rash. Shampoo, conditioner ... Skin cancer on the scalp may appear as red or flesh-colored waxy bumps or as sores or scabs that don't heal. Because they can ...
If a hair follicle gets irritated, it will turn red and swell. The inflamed bumps can form a white head that looks like butt acne. The bumps can also be painful or itchy, but not always. Folliculitis ...