Brief Answer:
As explained below

Detailed Answer:
Hello, and welcome to 'Ask A Doctor'

Thanks for posting your query.

Pain in legs can be due to over exertion or dehydration. You can take the following medicines for pain relief: XXXXXXX Etoricoxib 90 mg 1-0-0 for 5 days after food
Tab. Nusaid P 0-0-1 for 5 days after food.
Hot fomentation or volini gel application for the affected area will help.
Drink adequate fluids 3 to 4 lts of water. You can add Electrol powder into 1 liter of water to replenish electrolytes. Drink lemon or mosambi juice with a pinch of salt and sugar.

I hope this helps. Please feel free to discuss further if any.
Regards,

---