If your child has blisters in his or her mouth, it is important to know the cause of the blisters and then treat the symptoms. If it is due to traumatic herpes caused by eating too hard or too hot food, the blisters will heal naturally in a week or so. If it is because the child’s resistance drops during this period, caused by viral infections, the blisters will be a lot, full of the whole mouth, and will be painful and uncomfortable, this time we must carry out antiviral treatment, you can apply acyclovir ointment locally, you can also take pudilan anti-inflammatory tablets orally, and if necessary, you can be injected into the vexazole, antiviral treatment.