no canker sores (aphthous ulcers) resolve on their own over time. lidocaine will not cure them but it takes away some of the discomfort during the natural healing process. try using listerine and gargle with it for as long as you can stand. it will burn but it will also heal any sores in your mouth or throat. repeat 2 or 3 times a day the sores will be gone in no time. can be followed by cold h2o to cool painful sores. lidocaine is a topical analgesic it is a pain killer and really has no properties to "cure" anything it just makes it feel better while it heals.
does lidocaine cure canker sores on your throat? . i found a small white sore on my throat and i was prescribed lidocaine and it numbs the pain. but i was wondering if it cures it at the same time before it gets worse?