Be sure not to swallow too often or spread the bits around too much. Cough drops work by gradually applying menthol to your throat as you swallow, but we want to keep as much menthol as possible against the sore. We usually break down cough drops with a combination of tongue movements and saliva. Since we don’t want to move it, chew the cough drop up a bit to increase the surface area so the saliva can do its work faster. By doing this you should be able to easily relieve canker sore pain/inflammation and maybe even help a bit with a scratchy throat.