My baby had caught a cold. was sneezing and running nose. is there any food to take so that my baby recover faster, or any food to avoid?

How old is your baby? If not start weaning yet, just keep on breast feeding or bottle feed (whichever it is). If already starts semi solid or solid food, i suggest increase vit c intake. Orange (fruit or juice) is an excellent choice.

Baby is 4mths+ i am still breastfeeding. Used to be able to nurse baby to slp, but lately unable to. baby will turn away and refuse to latch or fussing.