Over a month ago I had bad tonsillitis and when it cleared I realised I had a lump on the back/side of my tongue. I just thought it would disappear, however a week later my cheek lining had ulcerated rigorously both sides. I have just left it upon till now hoping it would go. Now the lump has increased in size but all my mouth ulceration had vanished after a week. What do you recommend I do?