irritated butt from riding not sure why
I started riding today. I have not ridden in some time now, i decided that since i was waking up at the appropriate hour, that biking would be the best thing for my health. i've gone a total of 3 one mile trips and after the 2nd trip and very much on the 3rd one, my butt started to get rather irritated. I thought I might need to see my gastro doctor for this, unless anyone can give me suggestions on how to deal with that. its definitely rectal pain. I had considered taking a warm bath (not shower) after my 3rd ride but then i wondered how many times I'd be tempted to do that later on the day, knowing that i'd go back a few more times. any ideas on how to prevent this from happening? I did not get this pain back some months ago when i used to ride, the only difference is, i adjusted my seat so that it would not swish from side to side, that way i did not have to adjust for its turning once i got on it. should i leave it swishing a little bit? anything else?