Hello, You are being treated with a local anesthetic commonly used for dental treatment to give you comfort with numbing the sore tissue. The Antiinflammitory ibuprofen has benefits that can reduce symptoms such as redness and swelling. Keep well hydrated by drinking plenty of water. I suspect your condition may be viral since no antibiotic has been prescribed. Treatment involves being patient, rest and as prescribed, medication to help reduce your severe discomfort . Thank you for your inquiry. Do not worry. Lidocaine rinses are safe and commonly prescribed.