Moistness (chronic radiation proctitis, maybe)

Hi all. Haven’t been here much. I had a prostatectomy in 2006 and salvage radiation in 2007. PSA undetectable since then.
I had acute radiation proctitis as I finished radiation but it went away pretty quickly with medication (a foaming steroid application).
Now, all these years later, I’m passing mucus. It kind of seeps out asI go about my day, and especially when passing gas.
Not a lot, but it’s annoying to be damp back there.
No blood, no pain, bowel movements are pretty normal. Had a normal colonoscopy 3 years ago.
I understand there are some medications that will cool down the inflammation and therefore reduce the mucus. Maybe the same foam I had before?
Anyone else been down this slippery (sorry!) slope?
I’m about to call a gastroenterologist.
G.

Nine years ago I had radiotherapy (IMRT/IGRT) for a total of 70.2 grays. Just recently I have experience a little mucus on occasions. It has never been a problem. Two years ago prior to my 10 year colonoscopy I ask the GI doctor to check for radiation damage to the bowel during the exam. After the exam the doctor said he saw zero indication of any radiation damage to the bowel lining.

Well, I found out what is causing the sporadic mucus in my stool. My family doctor told me it was probably from my radiation treatment nine years ago. But actually there is a 100% correlation when I take ibuprofen or Meloxicam for a couple of day. So I found several papers that dealt with this exact subject.