There may be many reasons for scalp itchiness. The most common causes are listed below:
2. Contact Dermatitis
On scalp and neck. Reactions to chemicals such as shampoos and scalp treatments may cause an allergic response. The reaction occurs with a few minutes up to a days after exposure. The lesions may be hot, blistered and also 'weepy' with clear discharge.
Psoriasis is a chronic autoimmune skin disease that speeds up the growth cycle of skin cells- causing skin dryness and heavy flaking with raw skin below the cracked skin. May be mistaken for dandruff in early stages.
A common condition that mainly affects your scalp. It causes scaly patches, inflamed skin and stubborn dandruff. It usually affects oily areas of the body, such as the face, sides of the nose, eyebrows, ears, eyelids and chest. This condition can be irritating but it's not contagious
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