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Scalp

Hidden under a mane of hair or exposed to the elements, your scalp can suffer from itchiness, dandruff, hidden bug bites, and sunburn.

Seborrheic dermatitis looks like yellow, greasy scales on irritated skin. It’s what causes dandruff. It’s easy to treat with over the counter or prescription creams and shampoos.
Causes of crawling sensations on the scalp include delusional infestations, hallucination, substance abuse, a parasitic infestation, side effects from medication, or neurologic issues.
Finding a hard scalp bump may be concerning, but in most cases, it’s not serious. Some causes could be a skin condition, injury, infection, or abnormal cell growth.
Painful scalp bumps are usually not serious and easily treatable. The common culprit is inflammation from eczema or acne. Infected hair follicles or allergens from shampoos or hair products can also cause painful and itchy bumps on the scalp.
A sore scalp can be caused by infected hair follicles, scalp pimples, or tension from certain hairstyles that may pull the hair too tight. Other causes include trauma from a head injury, or underlying skin condition like eczema or cellulitis.
Head lice is a condition that causes intense itching of the scalp and is mostly seen in children. Head lice are easily treated with oral or topical medication.