Hello everyone!!! They found protein in my urine constantly at 0.3. They…

Hello everyone!!! They found protein in my urine constantly at 0.3. They only prescribe Kanefron, but it has unproven effectiveness. There is no pressure, no swelling, nor sudden weight gain. I don't want to buy and drink Kanefron if it doesn't help. Has anyone encountered something similar? And I also want to ask about training contractions, what they are? I read about them in different sources and can't understand if they exist in me?