I usually play acoustic guitar, but I' recently gotten an electric for my birthday and finally I can play Rocksmith well. I never have problems with calluses anymore, but there's this thing that's extremely annoying. From putting too much pressure on the strings with my fretting hand (Usually on the acoustic), I get this weird stinging sensation in my fingertip when touching anything. It's a sharp pain that kind of feels like something like glass, or a splinter is stuck in there. Does it have a name? This time I really tried to be careful and stop playing before I felt it would happen, but it came totally out of nowhere, and I didn't even press that hard. Yes, I realise now I (Sadly, I REAALLY felt like playing, it's impossible to play like this) have to put the guitar away and wait until it heals, but this feeling is extremely annoying. Now I can't type using that finger, can't play video games with that finger, and have to make sure nothing touches that finger or else it'll hurt. Is there a way to reduce the pain? How can I prevent it from happening next time? Each time I really try to make it not happen yet it always ends up happening on pretty inconvenient times.