The more you scratch the back of your head, the more itchy it is, which may be caused by contact dermatitis, eczema, ringworm, seborrheic dermatitis and other causes.
1. Contact dermatitis: for example, contact with hair dyes, shampoos, shower gels and other products that cause allergic skin reactions at the back of the head can lead to erythema, rashes and itching of the skin at the back of the head, which can also lead to itching at the back of the head.
2. Eczema: Inflammatory skin reaction caused by internal and external stimulation of a variety of factors, causing eczema on the back of the head, will also appear on the back of the head, the more you scratch the more itchy.
3. Tinea capitis: fungal infection caused by ringworm, can also cause the back of the head, the more itchy scratching, some will also appear scaly skin-like secretion.
4. Seborrheic dermatitis: it is a kind of chronic recurrent inflammatory dermatosis commonly found in seborrheic areas such as head and face, chest and back. The cause of the disease is not yet clear, may be and Malassezia fixed value, lipids, skin barrier function is impaired, can also lead to the back of the head the more scratching the more itchy.
The more you scratch the more itchy back of the head, there may be other reasons, you need to go to the hospital in time to check, follow the doctor’s instructions for treatment.