All I can think of is a very popular suggestion, which is wetting a washcloth and freezing it, then seeing if they will chew on that to ease the soreness. Other than that, my cats (I've raised numerous litters) never really had any problems with teething, so I guess I just got lucky? If your kitty has any problems chewing her hard food, you can crush some of it and mix it with a little soft food. Too much soft foods though will mess with her belly and make it upset, also leaving you quite a mess in the litter box. Good luck an I hope she starts feeling better!