Interesting reaction I have. If I'm doing lots of physical effort (like I did these days mounting the polystyrene panels) suddenly the kidneys stop working as I start sweating hard. One day later, back pain occurs. Simultaneously, the leg ulceration starts leaking and opening.
So today I'm making this cure of beer, and i already start feeling a lot better: kidneys started working hard, back pain disappeared, and I expect in few days the ulceration also to close.