Patient: Description of the condition (onset, main symptoms, hospital visited, etc.): The red spots were found on the child’s body at 3-4 months, then expanded, increased and became brownish in color. At first there were a few and now there are dozens, large ones as big as a pinky finger and small ones as big as a soybean. It does not hurt or itch until now, and when rubbed, it will protrude from the surface. In several hospitals have seen (Guangdong, Hangzhou), said to 3 years old so will disappear. But now it is still growing, and there are also on the face. On October 21 of this year, I visited the Children’s Hospital and was recommended to go to Xinhua Hospital for a diagnosis. The new hospital diagnosed it as pigmented urticaria and said it was chronic. But there is no good treatment. 1. can it be treated? 2.Can medication control regeneration? 3.What should I pay attention to in my daily life? The skin lesions are round or oval pigmented spots that become red and swollen after scratching and rubbing, often starting in early childhood. Most of them are benign and self-limiting. More than half of the widespread pigmented urticaria that occurs in young children generally resolves in adolescence, with a slightly poorer prognosis for later onset, and rarely resolves spontaneously in adults. The disease is usually asymptomatic, but when provoked by trauma, scratching, temperature changes, or ingestion of certain foods or medications, erythema and itching may occur, and in some cases, systemic symptoms such as skin flushing, nausea, vomiting, abdominal pain, and tachycardia may occur. Therefore, it is necessary to avoid irritating factors, avoid the use of histamine-promoting drugs such as morphine, aspirin, codeine, quinine, hydrazinepyridazine, brassinine, poppy bases, polymyxin B, etc. Do not eat foods with high histamine content or histamine-promoting foods, such as seafood, shellfish, mushrooms, pickled products, alcohol, spicy and stimulating foods or foods that are not fresh. Wear soft cotton clothing to avoid mechanical stimulation; avoid excessive cold and heat, strenuous exercise, and emotional excitement. Consider medication for those with obvious symptoms. 1, can be treated, but usually only when the symptoms are obvious; 2, drugs can not control regeneration; 3, precautions: see the above information. Patient: Hello, Dr. Zhou! Thank you for your reply! I would like to ask: 1. What kind of symptoms do you mean when you say “treat only when symptoms are obvious”? 2. “Consider medication if symptoms are obvious” What kind of medications are there? 3.Will the previous scars disappear if I treat them then? 4. Do I need to go to you for further examination? Zhou Jing, Department of Pediatric Dermatology, Shanghai Children’s Hospital: 1, it is obvious itching, or the above mentioned flushing, nausea and other systemic symptoms, but the latter is relatively rare; 2, generally antihistamines, such as keratan, cetirizine class 3, the treatment is symptomatic treatment, I am afraid the pigment will not subside. 4, can come over to see the.