Occasionally, if there is excessive scaling in the scalp, it may be necessary to change certain habits to diminish the amount of dandruff. Infrequent shampooing alone is sufficient to produce what appears to be excess dandruff. The accumulated flakes of skin produce an unpleasant appearance on the hair and clothing. All that needs to be done is to shampoo more often. If the origin of the dandruff is a scalp disease, using a medicated anti-dandruff shampoo is often helpful. If this fails, it may be necessary to seek a professional's opinion.