I've been using griseofulvin for months now but i still have hair loss and itchiness, should i switch to lamisil (terbinafine)?

Itchy Scalp: It depends what you are treating, Griseofulvin does not treat hair loss unless the hair loss is caused by a fungus. If you are treating a fungus was a skin scraping done to identify if a fungus was present? If not you may not have a fungus. You may have seborrheic dermatitis which is a common skin disorder that mainly affects your scalp, causing scaly, itchy, red skin and stubborn dandruff.