I have white blister-like lesions on the inside of my lips.  Two doctors today told me it is not thrush and offered no cure.  One suggested using regular mouth wash such as Listerine.  I had Keflex recently and another antibiotic as well.  Do I just wait for it to go away?
Hi, A blister-like lesion can be a regular canker sore and not anything serious. Other causes can be due to viral infection, warts etc. So, first, you should consult an Oral Physician or an Oral Surgeon and get yourself checked.  A clinical examination can be done followed by a biopsy if needed to rule out the exact nature of the blisters. For now, you can do warm saline gargles and antiseptic mouthwash gargles. Also, avoid eating hard or sharp foods. Wait and watch for 3-4 days if you wish but should get it checked after that if there is no improvement. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.