I've got a sore gum, called my nurse yesterday who instantly started telling me to get an Xray asap.
If its an infection, they want to get me on antibiotics.
Like pooh said, it can become problematic quickly.
If you are currently on Hep C treatment, I would recommend getting an appt. with your dentist ASAP. If you are on treatment I would recommend calling your dentist and telling the dentist what drugs you are on and ask for an appt. ASAP. Infections can get out of control easily and you do not want to have to stop treatment because an infection got out of hand.
Swish Hydrogen Peroxide around in your mouth and get Perioguard from your dentist. That'll do it.