Hi... Most common cause of burning sensation while peeing is that ur urine Ph is acidic or else ur having urine infection...
Next Steps
I suggest get a routine urine analysis to be done and if it does not shows any infection than u can have urine alkalizers like pottasium citrate 10ml in 100ml of water twice daily which will decrease the burning sensation
Health Tips
Have plenty of fluids..
Avoid excess of animal protein