Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain, sore tongue along with burning sensation and now
sore throat and
nausea can be due to causes like
acid reflux, oral and throat yeast infection like Thrush,
throat infection caused by bacteria or virus etc..
You need to consult an ENT expert or an Oral Physician and get evaluated along with investigations like Oral and throat swab culture, CBC to rule out the cause and treatment can be done accordingly..
As of now you can take supportive treatment to relieve the symptoms like gargling with numbing mouthwash containing Lignocaine, take Vitamin B complex supplements, do warm saline gargles, take anti inflammatory painkillers like
Ibuprofen, avoid spicy foods and drink plenty of water.
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..