The following information may help to address your question:
The chance of contracting a skin infection can be reduced by good nutrition, which builds the body’s defenses and promotes healing, and by careful skin care with clean hands and use of sterile materials. For added protection, a doctor may recommend antibiotic ointments and soaks.
However, even in the presence of good care, it is possible for infection to develop. Signs of infection are redness and heat around an open area of skin, pus or a yellow drainage, excessive crusting on the wound surface, a red line or streak under the skin that spreads away from the blistered area, a wound that does not heal, and/or fever or chills. A doctor may prescribe a specific soaking solution, an antibiotic ointment, or an oral antibiotic to reduce the growth of bacteria. Wounds that are not healing may be treated by a special wound covering or biologically developed skin.