Question 1 Yesterday, when my sister was hugging her, she fell on the back of her head. She fell off her lap while she was sitting. She was in good spirits and was playing normally. In the afternoon, I don’t know if I ate too much or something else. I vomited a little. Could it be because I fell on my head? I would like to know if vomiting is commonly referred to as projectile? Dr. Song Shufen answered: After the baby falls, you need to observe whether the baby\’s energy, eating and playing are normal. The main reason is to fear intracranial hemorrhage, which will manifest as poor mental health, lethargy, vomiting, and severe convulsions. If the above symptoms appear, a head CT scan should be performed. It depends. If there is an intracranial problem, the vomiting will be jet-like. If the vomiting is due to poor digestion and other conditions are OK, you can observe it first. Question 2: My son got herpetic pharyngitis and buccal infection a few days ago. After taking medicine, his fever subsided and the herpes in his mouth became smaller. Can he go to kindergarten now? Will it be contagious? Doctor Cui Lixia answered: In this case, you cannot go to kindergarten because it will be contagious. In addition, the child has not fully recovered. If a child in the kindergarten catches a cold, the child will be easily infected. It is recommended to fully recover for 3-5 days before going again, and the throat spray can be sprayed in the mouth. Question 3: The baby’s plantar blood was checked three days after birth. It was suspected to be hypothyroidism. I went for a reexamination on the 22nd day. Is the reexamination pass rate high? The baby does not have symptoms of hypothyroidism, and the parents do not have hypothyroidism either. Is it possible to cure hypothyroidism? Dr. Wang Jing answered: Just wait for the reexamination results. If there are any problems, they can be treated. Hypothyroidism is a problem with the thyroid axis in the endocrine system. If there is a problem, it requires long-term medication to control it.