Dry weather is the "culprit" of cold "The child has been suffering from a cold for more than two weeks. He has a fever and a runny nose. At first, I thought he had a common cold, so I went to the nearby clinic to buy medicine, but it didn't work. Now the child not only coughs, but also has blisters on his mouth and nosebleeds at night. This year has passed without much comfort..." at a maternal and child health care hospital in Chaoyang District, Beijing, The child's parents, Ms. Zhao, said in distress. According to the pediatrician of the hospital, there is a high incidence of respiratory diseases in children this winter. The main reason is that the weather is dry this year, there is no snow, and there are many bacteria and dust in the air. From the reception situation