my 4 year baby have this kind of wound or any else I don't know. This is have for my baby one week what is this ? what to do for my baby.. it's danger what to do plz tell me

A. Apply coconut oil mixed with Kapoor in this area this is looking more like a swelling due to mosquito bite this is going to be helpful otherwise you can also try using calamine lotion if that helps yet if you require I would suggest you to get it checked with your doctor