How to get rid of cellulite?

I am in my mid 20's a size 8 (uk) and live a fairly healthy lifestyle. I run 5k a few times a week and I eat kind of well (I have a bit of a sweet tooth, but I eat in moderation) But I have really bad cellulite on my thights, particularly above me knees. Is there anything else I can do to help shift it, or at least make it a bit smoother. I have also tried several anti cellulite creams but nothing has worked so far. I'm off on holiday in 2 months and I would love to be able to wear shorts.....