Burning sensation in legs , feet or hands or in stomach or urine etc are all due to vitiated pitta dosha. These people can have many other symptoms of increased pitta like excessive sweating , excessive thurst , more moles on skin , zero tolerance for heat and many more. Amla is the best cure for increased heat in body. This is cool in nature , has rich amount of vitamin c and is a good oxidative agent. It improves vitality and immunity and pacifies increased pitta dosha. Regular use of Amla is the best in your case and will give you satisfactory results with in two to three months. Just increase the amount of water intake and specially take two three glasses of fresh water empty stomach in morning.

Regards.