Hi.. Thanks for the query.. I have gone through your query and can understand your concerns.. As per your complain it looks like you have an ulcer over your tongue as a bump with red appearrence seems to be due to Canker sore only.. It can be caused due to a number of reasons like Nutritional Deficiency , tongue trauma due to some sharp teeth or tongue biting habit, excessive intake of sour and citrus foods, burning with hot foods or chemicals etc. Sore throat can be very much due to inhaling fumes of the cleaning agent.. You need to consult an Oral Physician or a general dentist in this regard to get evaluated and treated.. For apthous ulcer you can do warm saline gargles Gargles with 1:1 solution of benadryl and milk of magnesia can help.. Apply numbing gel over the sore for relief from pain especially during eating.. Take a Vitamin B complex tablet for a period of 15 days.. Avoid spicy, sour and acidic foods.. Hope this helps.. Thanks and regards.. Dr.Honey Nandwani Arora.