How can i get rid of soreness in my thighs in a few hours?

Depends on cause: Treatment depends on the cause of the soreness. Muscle fatigue may respond to rest, message, heat. Injury may need rest elevation, muscle relaxants, etc. If it is due to poor ciculation, that will usualyy require diagnostic testing and more complicated treatment. Try asking your primary care provider or have him refer you to a specialist as indicated.