Thanks for writing to us.
can be treated by following suggestions
Use a ketoconazole
tar based shampoo every alternate day. Apply the shampoo over scalp and let it sit for 10 minutes then wash off hair.
Use a steroid
lotion in night
Usually with these two Treatment options seborrheic dermatitis subsides. To prevent further occurence continue using the shampoo once in a week. Steroid lotion has to be stopped.
If cure is not achieved, then you may need a course of antifungal and isotretinoin
Apple cider vinegar and mayonnaise application are home remedies
which may not yield desirable response.
Hope that helped