Allergy or cold?

Pa • #ttcbaby#2#ttcinlate30s.

My 4.5 month old baby was bitten by an insect (small rainy season ones) yesterday on his foot. From yesterday ,I noticed the area is red and slightly swollen. I have noticed he has slight watery eyes and very slight clear runny nose (just seen on pinching ). He is taking feeds normally.no other symptoms yet.

Does he have the sumptoms due to insect bite or is he developing a cold?

Any help?