hello,welcome to HCM.....
Burning sensation in urine can also be due to urinary tract infection
. so you need to be get your urine sample tested by consulting the doctor.
Also Excessive masturbation
can bring about a slow erosion process of the urethra
, which could make it tender and in some cases overly sensitive. This may cause either painful urination or an uncomfortable burning sensation after urination, or just general pain and discomfort in the penis and groin area. The best way to cure any of these problems would be to abstain from masturbation for a certain period of time. But if you do have continued physical complaints you should consult a medical physician immediately...
also try to drink plenty of water ,coconut water is also works good for burning sensation