Hello and welcome to healthcaremagic I would keep a possibility of seborrheic dermatitis of the scalp. Dandruff or seborrheic dermatitis is an important cause of scalp itching. Clinically there may be ill-defined erythema and yellowish/greasy adherent scales which when forcibly scraped/scratched exposes raw skin which oozes scantily and subsequently re-accumulates crusts/scales. Seborrheic dermatitis patients have an overgrowth of yeast, malassezia furfur which may be pathogenetically related/contributes to the inflammation of seborrheic dermatitis If I was the treating doctor I would have asked to use an antidandruff lotion/shampoo. My choice is 2% ketoconazole shampoo, thrice weekly for 2-4 weeks followed by once or twice weekly for maintenance. It is available OTC as Nizral 2% solution. Ketoconazole is antifungal,antiinflammatory. It inhibits the yeast Malessezia furfur which is present in abundance in seborrheic dermatitis and thus benefits seborheic dermatitis A moderately potent topical steroid e.g fluticasone or mometasone lotion can be applied to the scalp skin for faster relief, from itching,scaling and inflammattion of seborrheic dermatitis. Oil application should be avoided in your case. Oil won t benefit dandruff, would rather increase it The topical steroid lotion can be stopped once the dandruff is well controlled and thereafter the improvement can be sustained with just an anti-dandruff lotion/shampoo. regards