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Friction: Wearing tight hats or helmets can cause friction, irritating the hair follicles and causing bumps. Shaving : Shaving the scalp can cause tiny cuts that allow bacteria to enter.
The bacteria releases a toxin that causes a bright red blotchy rash that has a sandpaper-like texture, and the rash can spread to the entire body and usually first appears on the groin, neck, and ...
Along with the rash, atopic dermatitis can cause itchiness and dryness. It can also cause skin to feel warm and swollen. After the rash heals, the skin may have a discoloration to it, the AAD says .
PLE can be provoked by UVA or UVB (chief cause of sunburn) rays, meaning it can be triggered even by sunlight through glass. UV-A is a major constituent of sunlight, can pass through glass, is relatively resistant to sunscreen and can cause light eruption without sunburn.
Pseudofolliculitis barbae is a disorder occurring when hair curves back into the skin and causes inflammation. Eosinophilic folliculitis may appear in persons with impaired immune systems. Folliculitis decalvans or tufted folliculitis usually affects the scalp. Several hairs arise from the same hair follicle.
Skip shampooing for 24 hours post-scalp burn and opt for shampoos that are soothing to the scalp. “Avoid sulfates and dimethicone, which can increase irritation and trap heat, worsening damage ...
Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic contact dermatitis in which the allergen must be activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure.
Here are the most common scalp conditions, with photos and treatments. Want to know what that bump, sore, scabs or red irritation on your scalp means? Here are the most common scalp conditions ...