Hello everyone i was referred for an urgent referral for an ulcer that isn't healing i hhave seen the doctor, and he prescribed something called nystatin for oral thrush and lozenges , after treatment its still there, can't eat as it s so uncomfortable it is just at the side of my tongue.The doctor has done a referral now was asked to call hospital in 3 days to be told the waiting time is 4 weeks rather then 2 weeks, I am so worried, as my mum gas had tongue cancer twice been in remission for 15 years ,please give me some advice please x