In reply to charley:
I took a 3 week break as I waited until there was absolutely no noticeable discomfort (dependant on severity of the injury). It took 3 weeks recovery as I managed to twinge the finger a couple of times doing normal activities and I (stupidly) ignored early discomfort.
During the layoff, I used ibuprofen initially, a little hot/cold treatment but mostly gentle massaging of the pulley.
Now that I am back to (indoor) climbing, I have concentrated on doing vertical, low grade routes (overhang requiring too much grip and slabs potentially crimpy). The first time back, I hurt my finger again as I discovered I was unnecessarily crimping with my ring finger on holds that didn't require it. It recovered quickly as I eased off early in the session.
During the sessions, I also aimed to concentrate on endurance by up/down climbing with the emphasis on mileage and technique...as well as sorting my over grip issue out.
After 2 sessions, I moved up from 4s to 5s but really making sure I took it steady and still vertical routes only...now looking forward to getting some proper outdoor climbing in!