When you find that swollen gums are caused by reactions to medications, it is best to consult your health care provider regarding the use of substitutes and other alternatives to previous drugs. Talk to your physician first and never change medications on your own without consulting a doctor. When would you know that you should contact a medical professional. Immediately seek the help of medical professional if there is severe and persistent swelling or is accompanied by other symptoms that are unexplained, and when swelling already brings discomfort. The dentist will check your gums during the dental visit and may ask questions pertaining to your medical history and may recommend some treatments to relieve the swelling of gums.