The two-month-old baby has been sick. Snot and cough occur rarely (abo…

The two-month-old baby has been sick. Snot and cough occur rarely (about five times a day, he coughs occasionally). He snore at night. What was treated? Or is it not a cold? He also constantly coughs during feeding, due to watery milk? (it doesn't want to thicken, the milk is now as thin as water).