My 4 month old is fussier than normal and drooling more. i looked in her mouth and on her bottom gum there's a white spot tooth?

Teething: Congratulations, your baby is begininng to teeth. You can have her suck on cold washcloth or give Ibuprofen , if necessary.

Congratulations: Sounds like your child is getting her first of 20 baby teeth. She will be fussy, drool a lot, and may even run a slight fever, till the tooth comes in. Give her something to chew on (teething ring). Chill it first in the refrigerator--soothing. Don't forget, 1st dental appointment age 1, preferably with a pediatric dental specialist (for the same reasons you see a pediatrician).