The patient asked the doctor: My son is 5 and a half years old, half a month ago, my son found small white spots on the back of his left hand and the back of his right hand, began to use a little dermatological cream at home, no effect. September 19, I went to the local hospital dermatology department to see, the doctor said it is sandy dermatitis, prescribed oral medicine loratadine granules and topical medicine ethobenzamine ointment. I’ve been using the medication for 5 days now, but the effect is not obvious, and I still find it coming out on my right arm. Please tell me, doctor, is sandy dermatitis not curable and is the medicine prescribed above effective? I’m not giving oral medication to my child now, so what is the best way to treat it? Thank you! The answer is “frictional mossy dermatitis”, commonly known as “sand dermatitis”. Common causes: children playing with sand, dirt, plastic toys, plush toys, crayons, play-doh or soapy water, in the back of the hand, forearm, even the upper arm, knee and thighs and other places will appear varying in size papules, no blisters. At first the rash is not itchy when it is small, but it will be itchy when the rash is long, especially at night under the covers and in the morning when you wake up. It may be caused by rubbing against something rough, and if left untreated, it can last from one to two months, or even three to four months or six months. It occurs in the spring and summer. Prevention: Avoid contact with the above-mentioned toys. Wash your hands sparingly with soap and hand sanitizer and use less body wash. Do not crawl on the floor or kneel on the ground often. The disease is not contagious and can be cured. It is recommended to visit the hospital and adhere to the medication.