Children’s dry and frizzy hair without luster can be seen in ringworm of the head, hypothyroidism and other conditions, usually can be dealt with through medication and other methods. 1. Ringworm of the head: can make children’s hair dry and frizzy without luster, is a superficial fungal disease that occurs in the scalp. Can be used locally compound benzoic acid tincture, compound clotrimazole cream, etc. to eliminate the mold of the hair shaft and scalp, can also be used under the guidance of the doctor ashwagandha and ketoconazole and other antifungal treatment. 2. Hypothyroidism: It can also make the child’s hair dry and frizzy without luster, etc. This disease can also appear head size, short neck, wide eye spacing, low nose, tongue often sticking out of the mouth, accompanied by mental retardation, rolling over, sitting, standing, walking time are delayed. Once diagnosed, the patient should be treated with medication such as levothyroxine sodium and thyroxine tablets for life. In addition, you should pay attention to a reasonable diet, you can eat more walnuts, peanuts and other foods containing more zinc, to replenish the basic nutrients needed by the hair. There are many other possible causes of dry and frizzy hair without luster in children, and it is recommended to consult a doctor in time to be evaluated and handled by a specialist to avoid delays. All of the above medications should be used under a doctor’s supervision, avoid self-medication.