Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain it seems that the symptoms of inflamed Papillae, dry mouth, hot breath and tiny ulcers in mouth, white spots around the lips and feeling of something struck in throat can be due to causes like Viral infection causing herpetic blisters or cold sores.. Consult an Oral Physician or an Infectious Medicine Specialist and get evaluated and a thorough clinical evaluation and investigations like Oral and throat swab culture can help in diagnosis and treatment can be done accordingly.. You can be advised Oral and topical antiviral medication like Acyclovir, Valacyclovir etc.. For Dry mouth chew sugar free chewing gum and drink plenty of water.. Do warm saline gargles. Avoid spicy foods.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.