Burning while urinating and after. Help?

I have been experiencing a moderate burning sensation during and after urination for the past two days. Inspite of having considerable amounts of water my urine output is very less. Most of the water seems to be exiting via profuse sweating as the temperatures here are around 42-44 degrees. I  tend to clean the place with body wash gels as I've had UTI while using public restrooms. Currently, the burn goes away if I frequently wash with water or let air reach it. If I drink plenty of cold water the burning doesn't happen. Further, cold compress helps greatly. I have no pain elsewhere or fever. I take no regular medications. Could anyone help me, please? It's pretty uncomfortable. Is it UTI again? What medications can I take? Can I take berberis vulgaris Q, I have it at home, but I don't know the dosage. Please help?🙏