Hi my 1 and 6 months old son has this sores on his tongue and coner of his mouth it looks very painful cause he dont eat or drink what can we do help?

Hydration: Continue to breast feed and monitor the number of wet diapers. Your 6 month old baby may have sips of cool water to soothe the mouth. The sores may be related to a viral infection, impetigo or thrush. Please have an appointment with your physician to determine the next steps. Small amounts of liquid frequently may help to avoid dehydration.