Dandruff is particularly high after using minoxidil tincture may be caused by adverse drug reactions, physiological reasons, and pathological reasons. 1. Adverse drug reactions: some patients are more sensitive to minoxidil tincture, after using the symptoms of irritation, may lead to increased dandruff. 2. Physiological reasons: dandruff increase after the use of drugs, not necessarily caused by the drug itself, in the use of drugs during the patient’s mental stress, irregular life, the climate is too dry, improper washing and care, etc., can lead to an increase in dandruff. 3. Pathological reasons: the use of minoxidil tincture patients who suffer from seborrheic dermatitis, psoriasis and other skin diseases can also appear dandruff increase symptoms. If there is a Minoxidil tincture after dandruff especially more, it is recommended to go to the regular hospital, under the guidance of the doctor.