Mayo Clinic says...

http://www.mayoclinic.org/diseases-c...t/txc-20249211

Though a warm sitz bath and applying ice seem contradictory. I do know someone who did the sitz bath thing when she developed hemorrhoids during pregnancy. On the other hand if sitting on a bike saddle is an issue, that implies inflammation which I would treat with an ice pack, I think.

Not mentioned on the Mayo Clinic page, but I think my friend also used a stool softener to prevent further irritation.

I hope they subside soon.