You have not mentioned any
fever so it seems simple congestion. But infection may catch.
If you can get Piper longum and holy basil leaves, boil these in water. Say in 100ml water 1 Piper longum and few leaves of Holy basil may be boiled for some time. This water may be given intermittently to drink by child for few days/one week.
This clears
cough, fever, Intestinal infection etc. This is a harmless primary measure. No side effects, no interaction with other drugs.
If you can get from India or online, pl get Bachaturbhadrika/ Balchaturbhadra chooran - a polyherbal combo of four herbs - infant friendly AYURVEDA classic medicine. Piper longum,
Aconitum heterophyllum, Pistacia integerrema, Cyperus rotundus are the ingradients. 1/4 gm with honey twice or thrice a day will make your baby happy and congestion less in few days.it improves immunity and appetite and is carminative, anti spasmodic also.
This powder can be given upto 12 yrs of age of children when needed. Dose varies.
Hope it helps. If you have any questions pl write direct question. I am there to help you.