After reading this, I went out & got zinc oxide ointment (Desitin). It really helps!

Get your Doctor to prescribe Ultraproct Ointment and smear it around your anus after going to the loo.The burning is caused by the Bowel contents particularly when you have diarrhoea.It contains digestive juices.Also constant Bowel motions flare haemorrhoids so using a haemorrhoid ointment does stop the burning.It contains a local anaesthetic.

I get that a lot it's horrible just wish there was a cure for i b s my doctor is hopeless have told her before and she just ignores it it took me 9months for her to refer me to a specialist for another problem god only knows how long it would take for this I dread going on holiday because of how my bowel behaves

Yes I also get rectal burning quite often

Hi I have burning like that and burning inside too, I described my symptoms to the doctor I saw at the hospital and he arranged a sehat test for me . I have been diagnosed with bile acid malabsortion at 6% , when I read up on this it says most people with IBS could have this . The medication for it isn't very nice it's like drinking wallpaper paste I am waiting for this to be changed to something else as I am having awful painful side effects.