hi kitty,
what i did for my girl earlier was i wrapped a small cloth with ice and intermittently place on near where shes teething,from the outside, not directly on the gum's surface. that may help to relieve it as it reduces inflammed swelling gums and numb the nerve there.
Always inform her befor hand why and what you are going to do before u begin.your baby can understand and will be more assured than thinking that you are about to give her more pain. its a psychological thing , anyone needs to be mentally ready before accepting something with a postive effect. do update us on the outcome.