Gentamicin sulfate cream is used to treat minor skin infections, including folliculitis and impetigo, according to MedicineNet. It is also used for treating infections caused by some skin conditions such as psoriasis and eczema, and infections that arise from wounds, cuts and minor burns. It is sometimes sold under the brand name Garamycin and is a topical cream applied to the affected area as recommended by a physician.
The cream is classified as an aminoglycoside antibiotic, and the way that gentamycin works is by halting the growth of particular bacteria. The cream form is usually used for oozing, greasy or wet infection types, while the ointment form of the gentamycin is used for dry skin infections and keeps moisture in the skin.
Gentamycin is useful only in treating bacterial infections, states MedicineNet. It is not used for treating fungal or viral infections.
The medication should be applied only to clean, dry area. It should be applied in a thin layer unless otherwise directed by the prescribing physician. If directed, the affected area should be covered with a sterile bandage. The treatment length and dosage of gentamycin varies according to the condition being treated. Some potential side effects of use include itching, redness and skin irritation, all of which should be reported to a doctor if experienced.