 [ Symptoms ] could my retainer give me a bacterial throat infection  i went about a month without wearing my retainer in april a few days after i wore it again i developed a sore throat which the doctors deemed a bacterial infection i was off the medicine and felt fine for a few days until i started wearing my retainer again they told me i had another bacterial infection and put me on more amoxicillin is it possible my retainers are making me sick [ Disease ] hi sounds like your not really cleaning your retainer this could be your problem when you wash your teeth give it a good brush as well with tooth paste making sure its really clean do hope this helps you good luck