Hi, There Has Been A Swelling(pearl Like) Developing In My

Hi,
There has been a swelling(pearl like) developing in my gums between my teeth and it is extremely painful,gum bleeding and stale odor stays even after brushing...It has been about 2weeks and today it hurts badly,the inflammation looks like its covering most of my teeth row both top and bottom. Making it worse today the gums are tearing away little by little.
Need an advice hear.Also had beed on anticonvulants for more than 3years is that the reason?
Any help or advice will really help.

Regards,
KC