If a person had syphillis or herpes orally how long would symptoms last? Would they eventually go away? After how long? I've had a feeling of something caught in the back of my throat as well as a white coated tongue that the director thought was thrush but did not test for 8 months. Gargling salt water seems to help the throat for a short period of time but then comes back. Also have bumps on the back of tongue as well the side of the tongue towards the back. Are these typical with oral thrush Or more typical of std?