Hi , clinical checkup is needed , meanwhile you can use one of  these home remedies 3-4 times a day which will give him some comfort .1 . Take yashtimadhu(mulethi) powder half spoon.mix it with honey and apply it on the affected area. 2. Dip a cotton swab in honey & dab it on the affected area.3. mix little honey in one tablespoon of coconut milk.massage the affected area with it.

Submitted report is incomplete... Better consult ayurvedic pediatrician Dr. S. R. Chaubay at mcd ayurvedic dispensry uttamnager

Hello there...I can understand your concern. If the condition is so severe what are you waiting for? Why haven't you consulted a dermatologist still? Dermatological conditions are very difficult to diagnose over the phone. It will need detailed clinical examination. So kindly consult a dermatologist for further evaluation. Also warm saline gargles need not be done every hour. Once every 4 to 6 hours is enough.