Damage to the muscles and nerves as well as dry mouth are the main long-term issues. The ache and the sour taste vanish. Your mucosa merely needs some time to recover before the mucositis goes away. Nonetheless, the dry mouth has improved a little for me. Three years after treatment, I still get a cotton-mouth in the morning. This causes the mucus to cling to your throat, causing you to cough and spit up some pretty disgusting things frequently. ... View more