Dry the faucet area with paper towels. Drying the surface allows you to spray the bleach solution directly onto the mildew.
Mix approximately 1/2 cup of bleach with 1 quart of water to make a bleach solution effective in removing mold. You also can use a non-abrasive household or bathroom cleaner spray that contains bleach.
Spray the bleach solution or cleaner on the steel faucet where the mildew is located.
Use paper towels to wipe off the mildew after 15 minutes. If it doesn't come off easily, scrub the faucet with a nylon scrub brush and wipe with a wet paper towel.
Dry the faucet with a rag or towel to avoid spotting and to prevent mildew from growing again.