trying to heal a would by sewing it together
Assuming you mean "heal a wound", sewing a wound together is a rather common treatment for wounds.
Yes, I was poking fun at myself.
(I discovered that when reading Order of the Phoenix. "It sounds as though you've been trying to sew your skin back together, but even you, Arthur, wouldn't be that stupid." Wait, that actually is what stiches are?)
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.