Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications that you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them. Depending on your specific circumstances, your doctor may want you to:. Fucidin Cream: Fusidic acid belongs to a class of medications known as antibiotics. It is used to treat various skin infections caused by certain kinds of bacteria. Such infections may include impetigo and secondary infections (infections that develop after the skin has been injured) to burns or broken skin.. Treato Drugs Betaderm Interaction between Betaderm and Fucidin; Experiences Side Effects & Concerns Compare Medications Drug Facts. Interaction between Betaderm and Fucidin . There is no known interaction between Betaderm and Fucidin in our records. However, an interaction may still exist. Always consult your doctor before taking these medications together. Do not stop taking the medications .