Hello, i'm 20 years old and have been recently diagnosed with pr (pityriasis rosea). My doctor gave me a topical steroid (mometasone furoate) and some pills (methylprednisolone) to take to relieve the itching and hasten the recovery time.

-i have the herald patch on my right foot. Is this abnormal??
-how long will this disease persist? (i ask this because I am a tennis player, which means I cannot quit my team.)
-how do you deal with pr when you're around your co-workers, especially if you're a college student just returning to school?-
-does exposure to sunlight (say 15 minutes a day) really get rid of pr?
-how do you bathe if you're in college dormitory showers?

So far, i've only seen a few bumps (about the size of a bean) on my abdomen, back, chest and upper thighs. I try to keep my room as cool as possible so that I won't sweat in my sleep by applying a/c or leaving my window open. Will it continue to worsen to the point it covers my entire body? What is the recovery time?