Popping a blister is fine when you make sure to do it carefully, keeping these steps in mind:
- Be sure to clean the area around the blister with antibacterial soap.
- Sterilize your needle with rubbing alcohol.
- Drain the fluid inside by making a small puncture on one edge of the blister.
- Use antibiotic ointment and then cover it up with a fresh bandage.
If you are living with diabetes, it is also not advised that you treat your own skin injuries. Popping blisters can put you at risk for infection and serious complications. When you find a blister it is safer to make an appointment and have the doctor safely take care of it.