My 2 yr old went to the dentist friday and was fine. Saturday he started having swollen gums and today I noticed some blisters on his tongue. Before he went to the dentist he had a fever for a couple of days. What could the problem be and what can I do?
Hello, thank you for consulting with Chat Doctor. It looks that your son is having a viral infection because of which he started up with fever, and now he is having multiple ulcers on his gums as well as on the tongue.  You have to start with anesthetic mouth washes as they will give him relief, anti-viral medications and excessive water intake. But once you should also visit your dentist again to get it examined properly. Hope it will help you.