Don't pop it, just put a band-aid on it. If it is on your foot, don't wear tight shoes.
If you are going to lance it, avoid infection by cleaning the lance and the blister area well. Never tear the skin off as healthy skin may also be damaged. Just let it dry and fall out itself.
I would get an ice cube and wrap it in cloth or tissue, then hold it to your blister. It might relieve pain.
It's most likely a blister.
same problem except from baseball
If you have a finger blister, it’s important to keep it clean and protected. Avoid popping the blister, as this can lead to infection; instead, cover it with a sterile bandage. If the blister is painful or large, you can gently drain it using a sterilized needle, but be sure to keep the area clean. Monitor for signs of infection, such as increased redness, swelling, or pus, and seek medical attention if needed.
A blister on the finger that bleeds should be covered and protected from germs. This may have been caused from a friction rub of gloves, scissors, hand tools or other repetitive hand movements.
A blood blister on a finger typically lasts about one to two weeks if left alone and not aggravated. It usually resolves as the body reabsorbs the blood and the skin heals. It's important to keep the area clean and protected to avoid infection. If the blister shows signs of infection or doesn't improve, consulting a healthcare professional is recommended.
You get a needle and hold it over a candle or fire and when it gets really hot pop the blister. The heat is to get the needle sterile. If the blister is in a high-use location, like inside the hand, you can prevent it from tearing open later by inserting the sterilized needle BESIDE the blister and coming up from the underside into the blister, then squeezing the blood or fluid out that way. The top layer of skin lays flat and can actually bond back together instead of splitting open. Good luck!
A fluid-filled raised area on the skin of a finger (or anywhere else on the body) could be a blister. A blister can be caused by a burn or by repeated rubbing, such as blisters on the feet caused by shoes that do not fit correctly.
If the red/purple runs a certain length of your finger then its not getting enough circulation as if a rubber band was tied around it. Otherwise, its most likely a small bruise, or a blood blister.
A blister on the labia
In the context of blister copper, "blister" refers to the appearance of the copper after it is extracted and processed. Blister copper contains gas bubbles that form during the smelting process, giving it a blistered or bubbly appearance.
Blister Agents