Is there a cannabis product for the scalp

"My dermatologist has diagnosed my scalp itchiness and sores as psychogenic pruritis, and has prescribed clobetasol proprion for it. It helps the itching for a while but not for long. Is there a cannabis product that can be applied to the scalp with some hope for relief? "

Topical cannabis products could possibly help with itching, both through the moisturizing properties of the lotion/cream/balm itself, and also because marijuana can have some anti-allergy properties.