Small red dots on the scalp is itchy generally because of dermatophytosis, seborrheic dermatitis or eczema, etc., can be treated by keeping the scalp clean, improving lifestyle, away from allergens or the use of drugs. 1. dermatophytosis: small red dots on the scalp itchy may be due to dermatophytosis, pay attention to keep the hair and scalp clean and hygienic, if necessary, you can use miconazole nitrate cream and other antifungal treatment. 2. seborrheic dermatitis: small red dots on the scalp is very itchy may also be caused by seborrheic dermatitis, patients need to pay attention to daily life style, avoid spicy stimulating, greasy food, try to eat a light diet, regular exercise, if necessary, the use of retinoic acid cream and so on for treatment. 3. Eczema: small red dots on the scalp is very itchy may also be due to recent contact with substances that can easily lead to allergies, it is recommended that patients test allergens, away from allergens, to keep the scalp and hair clean and refreshing, if necessary, the use of clotrimazole cream or chlortetracycline, etc. for treatment. It is recommended that patients find themselves on the scalp with small red dots very itchy, timely medical, improve the relevant examination standardized treatment, under the guidance of the doctor to use drugs, do not blindly use drugs.