Fucidin Ointment works by stopping the growth of infection causing bacteria on your skin and also prevents their multiplication. This helps stop the spread of infection and promote healing. Fucidin Ointment also reduces symptoms of skin infections like redness, swelling and itchiness. Altogether, it improves skin condition and makes you feel good. This treatment has few common side effects and should clear up infections within a few days, but you should keep using it for as long as it is prescribed. It is advisable to keep the area of infection clean and avoid touching or scratching.