You may be able to relieve severe, throbbing pain by draining blood from under your nail. This procedure is not needed and is not recommended if you are not having pain. This procedure is safe if done properly.
To remove blood from under a nail:
You may repeat the procedure using the same hole. The pain and pressure that is immediately relieved may build back up again in a few days.
If your pain does not go away after you have drained the blood from under your nail, you may have a more serious injury. Call your doctor for an appointment.
Be sure to watch for signs of infection until your nail has healed. Signs of infection may include: