Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain burning sensation of tongue along with recurring eruption of blisters over the tongue and also feeling of lump in throat with breathlessness at night can all be related to Acid reflux in which there is reflux of acid from stomach to throat and mouth leading to following symptoms.. Other causes of mouth ulcers can be Stress, Nutritional Deficiency [Iron, Vitamin B12 and Folic acid] , hormonal changes, acid reflux, tongue trauma due to some sharp teeth or tongue biting habit, excessive intake of sour and citrus foods, uncontrolled diabetes and other immunocompromised conditions etc.. You should consult an Oral Physician and get evaluated and a thorough clinical evaluation and investigations like oral swab culture, laryngoscopy, upper G.I Endoscopy etc can be done to rule out the cause and then only a proper treatment can be done.. In case of acid reflux you can be advised to take Proton Pump Inhibitors like Omeprazole or Pantoprazole.. Take antacids like Milk of magnesia.. Avoid spicy food and drink plenty of water.. Always take walk after meals and take your dinner atleast 2 hours before sleep.. You should sleep with head slightly raised as compared to feet.. As of now to relieve the mouth sores you can start gargling with a numbing mouthwash containing Lignocaine to relieve the symptoms. You can also take a multivitamin tablet daily.. You can take anti inflammatory painkiller like Ibuprofen.. Suck ice and do cool water rinses.. Avoid spicy food.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora..