4. Surface Contact
Impetigo can live on surfaces for some time. If a person who already has an infection has been touching, picking, or scratching the infected area, and touches a surface such as a desk, phone, or doorknob, they can transfer the bacteria to that surface. If another person comes along and touches that surface, they can pick up the bacteria.
If they have an open sore or happen to scratch their skin, they can transfer the bacteria to their skin and get an infection. Surfaces can be cleaned with antibacterial sprays and bleach. If you have impetigo, you should wash your hands often and use antibacterial gel to keep them clean in between washing them.
If you suspect you may have been exposed to someone with the infection, monitor your skin for signs of infection and see a doctor for treatment. The sooner the infection is treated, the less likely it is to spread or become severe.