Polysporin ointment is an antibiotic that treats and prevents bacterial infections on minor skin wounds, according to Drugs.com. Polysporin ointment works by killing or inhibiting bacterial growth.
To use Polysporin ointment, wash and dry the affected area, then apply the ointment, and rub gently until it is evenly distributed, advises Drugs.com. Applying Polysporin at the same time each day provides best results. It is advisable to keep applying Polysporin for a few days after feeling better. People allergic to Polysporin ingredients or other medicines, pregnant and breastfeeding women, and those taking prescription drugs should seek doctor's advice before using Polysporin ointment.