I usually recommend Amosan for these, as it tends to soothe. Hold it for
two-three minutes and SPIT it OUT.

I recommend and use Tooth and Gum Tonic (made by the Dental Herb Company
of Boca Raton, Florida). This stuff is slightly antiseptic and made
mostly from herbs (the guy who makes it is a Dentist with a University
degree in Herbology). You must go through your Dentist to order it (he
won't sell to the general public), and it is quite expensive as compared
to the mass produced stuff, but it IS worth it, IME and IMHO.
Hope this helps
SP