Hey I have been into all this stuff for 20 years, never tried it for UC,anyhow.
As opposed to UV lamp up your butt which would give your rectum a terrible sun burn, something a bit safer.
Violet ray makes lots of heat,it is a form of diathermy.
Or 405-406 nanometer laser pen will kill bugs but not give you a sun burn.
I have both.
The problem with using light is as soon as it is obstructed it wont get to anything behind it.
So heat is probably a better way.
Hot tubs and sauna, as long as you don't cook your brain.
Old Mike
ir sauna or something like it
http://www.amazon.com/Infrared-Portable-Foldable-Sauna-Detox/dp/B002POAYDW/ref=pd_sbs_hpc_1
mice heat uc
http://www.ncbi.nlm.nih.gov/pubmed/17575720
Post Edited (Old Mike) : 4/29/2014 5:18:15 AM (GMT-6)