Running & hip pain

[jnuts]

I've been doing alot of sprint and stadium work to trim down my butt and thighs for an upcoming figure contest. Today I got a pain in my hip right ubove my glutes,I went to the chiroprcter and he said I need to lay oof the stadiums for at least a week or I'll pull a muscle. Any one have this prob. before? and what other cardio could I do to lean down the hip and glutes. I only have 3 weeks left til the contest and need some ideas!!
Thanks Mrs. Nuts