Hello Leema

I'm sorry to hear that you're dealing with some side effects from your treatment. I know that what you've described has been mentioned by a number of people here on the forum who have undergone radiotherapy for rectal cancer. If you use the forum search function to look for the term "anal cancer" you will be able to read through quite a few posts which have some tips for managing the soreness. 

If you already have flamazine and it's not helping then would certainly suggest speaking to the radiotherapists or your oncology nurse about the soreness. They may be able to prescibe some other topical cream with a local anaesthetic in it which should help. 

I hope that you have some relief soon. 

Best wishes, 
Jenn
Cancer Chat moderator