Each regimen includes 60-days of treatment. Flaky and itchy scalp can arise from dry scalp, dandruff (yeast), stress, and diet. There are many contributing factors including genetics, hair care practices and sweating of the scalp. Often a yeast overgrowth of the scalp causes inflammation of the scalp leading to flakes, redness, and itching. Doctor's recommendations are to wash the scalp every day (or every other day for dry hair) and apply an anti-inflammatory solution to the scalp daily. Active ingredients your prescription may include hydrocortisone, zinc pyrithione, allantoin, clobetasol Why Derm to Door? Free, fast shipping with automatic refills. Pause or cancel anytime FDA approved medication & affordable prices Licensed Dermatologist, Fast results