What causes the scalp to get red if its not psoriasis?

1. Seborrheic dermatitis is a common skin condition that affects the scalp. It is characterized by red, scaly patches of skin that can be itchy and flaky. Seborrheic dermatitis is caused by an overproduction of oil by the sebaceous glands in the scalp.

2. Contact dermatitis is a skin condition that occurs when the skin comes into contact with an allergen or irritant. Common allergens that can cause contact dermatitis include hair dye, hair products, and jewelry. Irritants that can cause contact dermatitis include harsh chemicals, such as those found in cleaning products and laundry detergents.

3. Fungal infections, such as ringworm, can also cause the scalp to become red and itchy. Ringworm is a contagious fungal infection that can be spread through contact with an infected person or animal.

4. Psoriasis is a chronic skin condition that causes red, scaly patches of skin to develop on the body. Psoriasis can affect the scalp, as well as other parts of the body.

5. Lichen planus is a rare skin condition that can cause red, itchy patches of skin to develop on the scalp. Lichen planus is thought to be caused by an autoimmune reaction, in which the body's immune system attacks the skin.

6. Folliculitis is a skin condition that occurs when the hair follicles become inflamed. Folliculitis can be caused by a variety of factors, including bacterial infections, fungal infections, and shaving.

7. Drug reactions can also cause the scalp to become red and itchy. Some medications that can cause scalp redness include antibiotics, antifungals, and chemotherapy drugs.

If you have a red, itchy scalp, it is important to see a doctor to determine the cause and get the appropriate treatment.