The hot water opens the blood vessels and increases the circulation. The fact that I need to keep warm to reduce the pain makes me think a lot of this is from the blood vessels choking up so there has to be a medication that calms down the blood vessels and in turn would increase blood flow to the oxygen starved tissue. I've been reading about Nifedipine. It increases peripheral blood flow. Relaxes blood vessels.
Newer PCs have both USB 3.0 and USB 2.0 ports. If you want your SuperSpeed USB device to perform at top speed, find a USB 3.0 port and connect the device to that port. A SuperSpeed device that is connected a USB 2.0 port, operates at high speed.
USB 2.0 is a version of the USB standard, and probably the most widely available one. USB 1 is old and never really caught on. USB 3 is new, very high performance, and is only just becoming widely available. It is 10 (USB 3.0) or 20 (USB 3.1) times faster than USB 2. USB Type C is new connector for USB. Traditionally USB used a Type A connector on the Host (computer) and a Type B connector on the peripheral (phone etc), There were several variants of the Type B, of which the most familiar is the Type B micro used on most mobile phones. Both Type A and Type B had variants to carry the extra conductors for USB 3.