I'm not convinced there is anything to get rid of the pain short of heavy narcotics to either put you to sleep or make you not care anymore. Of course training and conditioning will help for future rides.

Have a massage if you wish. There is nothing on your legs that you can't reach with your own hands for a self-massage, or perhaps get one from an acquaintance.

I've got plenty of trees in the back yard that I could cut a stick off of for FREE if I wished.