The treatment of fingertip injuries depends on how large the cut is and whether the bone or nail tissue has been damaged. Amputations of the skin over the tip of the finger that is smaller than a dime (smaller than 1cm) will usually heal very well from the sides without any treatment other than cleaning the wound and changing the dressing.
Keep your hand elevated for the next 2 to 3 days to reduce pain and swelling. A splint over the fingertip may be needed to protect your injury. If your cut is being allowed to heal in from the sides, you should soak it in warm water and change the dressing daily.
You may need a tetanus shot if:
You cannot remember when you had your last tetanus shot.
You have never had a tetanus shot.
The injury broke your skin.
If you got a tetanus shot, your arm may swell, get red, and feel warm to the touch. This is common and not a problem. If you need a tetanus shot and you choose not to have one, there is a rare chance of getting tetanus. Sickness from tetanus can be serious.
SEEK MEDICAL CARE IF:
There are any signs of infection: increased redness, swelling, and pain, or sometimes pus drainage.