sooo many ways, baby tylenol, baby orajel, teething rings, wet washcloth if baby is a really young teether, binkys (if you offer them), if baby is over 9 months old try a gerber biter biscut, and honestly, i just wash my hands and let them chew my fingers (as long as theydont have too many or it hurts, lol) the biggest thing that helped my babies through teething is a binky, orajel and LOTS of naps!
Binky's are hard t use because if they already have teeth, they can rip apart the latex and choke. A wet washcloth is awesome! And the bite biscuits for sure! They're really messy though. Like peanut butter because they melt in the mouth. :) Good luck!
Infant tylenol for the nights - check with you pediatrician for dosing. In addition to the above advice, wet one end of a washcloth and put the cloth in the freezer. Your LO can chew on the frozen end without chilling his fingers!