My 2year old has herpingina for 2 days now she can't sleep cries most of night but during day acts better fever is controlled but so much pain?

It will get better.: This is a common virus in children. Typically, this clears up in about a week. Keep her well hydrated and avoid irritating or acidic food and drink, like citrus fruits or juices. She may use Acetaminophen for a brief time. If her fevers persist for more than 3 days, if she is not drinking or urinating, or she is increasingly ill appearing, then she should be seen by a pediatrician.