For the past 2 weeks, I've been experiencing weakness (causing a limp) and a bit of pain on the outside of my right knee when I get to about the 3 to 4 mile mark. I believe it is ITBS. It usually clears up the next day. I had a long run of 11 miles one month ago, followed by "long runs" of 6 miles the following 2 weeks. This past weekend, i could only complete 3 miles due to the ITBS. I really want to run my first half marathon (Philly) in one month (just to complete, not to compete). The course is said to be very flat. I feel I am aerobically fit enough to finish it but am concerned about my knee. Does one month give me enough time to recover and adequately prepare for the half marathon? Any ideas on treating between now and then?