Persistent dandruff may be caused by a fungal infection, seborrheic dermatitis, or other underlying scalp conditions. Make sure you are using medicated shampoos like Candid TV or Ketomac exactly as directed, and avoid excessive oiling or harsh hair products. Sometimes, dandruff does not improve with over-the-counter shampoos, and in such cases, it is best to consult a dermatologist, who can prescribe stronger treatments or check for any scalp conditions that need special care.

Severe dandruff can irritate the scalp and lead to hair fall, but it is usually treatable. Use a medicated anti-dandruff shampoo (like ketoconazole or zinc pyrithione) 2 to 3 times a week and avoid heavy oiling of the scalp. Keep the scalp clean, do not scratch, and manage stress. If dandruff and hair loss continue despite treatment, consult a dermatologist.