Hey Anita,
My husband had a canker sore for 4 months before the diagnosis of squamous cell carcinoma of the tongue. Hopefully, this is not what your hubby has, however, do not wait too long. Our original physician waited two months and then it was another month before diagnosis after seeing an ENT. Time is of the essence in these matters!
Take care,
Debbie

Debbie/Caregiver/wife of Dan, diagosed with SCC tongue, Stage II/III, 1/3 tongue removal, lymph node dissection both sides of neck, skin graph 7/30/03. Left tumor found - radical left neck dissection 12/24/03. Could not get all of tumor/wrapped around carotid artery and in wall of jugular. 1/12/04 beginning of 6 doses of Taxol/Cistoplatin once a week, and rad 70 gray 5 days a week/6 weeks.