Toothache in children is a fairly common thing and the causes can vary.If the child is grumpy and does not want to eat because his teeth hurt.You can try to relieve it first with ingredients that may be available at home, before taking the child to the dentist. 1. Salt WaterMix half a teaspoon of salt with one glass of warm water, then ask the child to rinse his mouth using the salt waterGarlicAsk the child to chew the garlic. Mom and Dad can also crush the garlic first, then apply it to th...