Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that seems a big ulcer under my lip with
severe pain and difficulty in eating is due to Apthous Ulcer..
It can occur due to deficiency of iron and
vitamin B12,
stress, physical trauma to the tongue, allergies,
acid reflux etc..
I would suggest you to consult an Oral Physician and get evaluated and a thorough clinical evaluation and investigations like blood tests can help in diagnosis..
Treatment of underlying cause will relieve the symptoms..
As of now you can start applying numbing gel containing Lignocaine to relieve the symptoms.
You can also take a vitamin B complex 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.