Hi ! One of the common causes of burning urination is less intake of water, and so please check your water intake. Next possibility could be a urinary tract infection due to whatever cause, and to exclude this you have to go for a urine routine test along with a culture sensitivity if need be. For the time being at this hour of the morning, you may go for some kind of anti inflammatory drug, along with an alkaliser liquid to be taken with enough of water intake, which may give you some relief. Later you will have to show yourself to your family physician/Urologist if the problem persists. Take care.