Please, is it normal for a 2year old to complain of pain in his tooth? A molar is erupting and he cries at night due to pain.
You need get him checked by the dentist. You can apply the warm saline to area with a clean guaze. Pain relievers should help if taken at correct dosage and intervals. Avoid spicy food, hard crunchy food and any food that requires a lot of chewing while the gum is still sore.