I work from home a few days a week right now (not initially due to UC). I work with documents for a pharmaceutical research company so most of my work is computer based and our company allows us to WFH (or work from bed, or the tub when needed!!!).
I have found however, that on the days that I work from home, I generally have an "episode day" (several trips to the bathroom) and on the days that I have to go into the office, I have good days (one or no trips). I dont know if it is my body subconsciously telling me "Hey- you can't get sick today you gotta take an hour long bus ride downtown and sit in a cube for 8 hours and then get back home!" or what but so far so good. (I hope I dont jinx myself with this post).