Home treatments for crusty scalp include applying a small amount of mineral oil, petroleum jelly or baby oil directly to the scalp to loosen scales, explains WebMD. Patients can also treat a crusty scalp by gently scrubbing the scalp area with a soft toothbrush and washing the head with a gentle shampoo. Patients with conditions such as lichen planopilaris or ringworm may require stronger medications such as oral steroids and topical corticosteroid creams to treat a crusty scalp, explains Healthline.
A crusty scalp caused by head lice should be treated with medicated shampoo designed to kill lice eggs, suggests Healthline. It is also necessary to wash all clothing and bedding in hot water and dry heat to eliminate lice from infecting the scalp, causing crusty scabs. Patients with lice should also clean the furniture where the infected person has resided and bag up items that cannot be washed in a plastic bag for two weeks to kill adult lice.
Crusty scalp caused by dermatitis is commonly treated with medicated shampoos or over-the-counter topical ointments to heal the skin scabs, according to Healthline. Medicated shampoo also helps soothe and heal scabs caused by psoriasis while easing symptoms that include itching or pain. Medical professionals may also recommend antihistamines to help relieve itching and pain associated with skin conditions that cause the scalp to scab and crust over.