★★★★★
In some cases, soaking Swedish Bitters on cotton or cloth and putting it on the abscess (on the gum or bump on the gum) will greatly help, and if done regularly (at least once or twice per day), it can make the abscess go away.
Some health food stores stock Swedish Bitters, but it is more economical to order it on the internet.
It is worth a try. Drinking the stuff can do a lot of good for the body as well.