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
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?