Hand and foot syndrome or palmar plantar erythrodysesthesia

Here is something you might restrain yourself (contraindicated) from working on.
Especially when you read these guidelines

- Try not to walk barefoot and use soft slippers and thick socks to reduce friction in your feet.
- Avoid using tools or household items that require you to press your hand against a hard surface, such as garden tools, knives, and screwdrivers.

http://www.cancer.net/navigating-cancer-care/side-effects/hand-foot-syndrome-or-palmar-plantar-erythrodysesthesia