Hi. Welcome to HCM.. So sorry to hear about your problem and will try my level best to resolve it.. As per your complain in case if you have burning mouth syndrome leading to burning and stickiness of lips then it can be most probably due to dry mouth causing the symptoms.. Other causes can be oral infections like thrush,nutritional deficiency of iron and vitamin B12, stress, acid reflux, side effects of medicines etc.. Taking hot sauce can further increase burning and should be stopped taking and take foods with moderate temperature.. I would suggest you to consult an Oral Physician and get evaluated and a thorough clinical examination and investigations like blood tests can be advised.. Treatment of underlying cause will resolve the symptoms.. Take Vitamin B complex and iron supplements after proper investigations.. As of now to get relieved you can start gargling with a numbing mouthwash containing Lignocaine.. Take anti inflammatory painkiller like Ibuprofen.. Avoid spicy foods and take a soft bland diet.. Suck ice pops.. Hope this helps.. Regards..