Fusi Cream & Ointment
A comprehensive guide to the topical antibiotic Fusi, used to treat bacterial skin infections.
Quick Facts
What is Fusi and what is it used for?
Fusi is a topical antibiotic that comes in the form of a cream or ointment. It contains the active ingredient “sodium fusidate” (in the ointment) or “fusidic acid” (in the cream) at a 2% concentration. The medication works by stopping the growth of or killing bacteria that cause skin infections, making it effective in treating a wide range of bacterial infections affecting the skin’s surface.
- Boils and Abscesses: Used to treat boils and deep hair follicle infections.
- Impetigo: A common skin infection that causes sores and blisters, especially around the mouth and nose.
- Infected Wounds and Burns: Helps prevent and treat infection in superficial wounds and minor burns.
- Inflammatory Acne: Can be used to treat inflamed pimples infected with bacteria.
Thanks to its effectiveness against a range of common bacteria, Fusi is a primary choice for treating many primary and secondary bacterial skin problems.
How to Use and Dosage
Always use Fusi as prescribed by your doctor or pharmacist. This medication is for external use on the skin only and should not be swallowed or placed inside the body. It is important to wash your hands thoroughly before and after each use.
- Cleaning: Gently clean and dry the affected area before applying the medication.
- Usual Dose: Apply a thin layer of the cream or ointment to the affected area two to three times daily.
- Covering with a Dressing: The affected area can be covered with a sterile dressing if necessary, in which case the frequency of use may be reduced.
You must complete the course of treatment prescribed by your doctor (usually 7-10 days) even if the symptoms disappear, to ensure the infection is completely eliminated and prevent its return.
Potential Side Effects
Like all medicines, Fusi may cause some side effects, but they do not affect everyone. Most effects are localized and mild.
- Common Symptoms: Mild skin irritation, itching, a burning sensation, or redness at the site of application.
- Uncommon Symptoms: Rash, dry skin, or minor pain.
- Serious Allergic Symptoms (Rare): Seek immediate medical help if you experience difficulty breathing, swelling of the face or throat, or a severe, widespread rash.
If any of the side effects worsen, or if you notice any other unlisted symptoms, you should inform your doctor or pharmacist.
Important Warnings and Precautions
Before using Fusi, you must inform your doctor of your full medical history, especially if you have any drug allergies.
- Allergy: Do not use the medication if you have a known allergy to fusidic acid or any of the other ingredients.
- Use Near Eyes: Extreme caution should be taken when using the product near the eyes. If the medication accidentally gets into your eyes, rinse them immediately with a large amount of cold water.
- Long-term Use: Using the medication for long periods may increase the risk of developing resistant bacterial strains.
- Pregnancy and Lactation: Consult a doctor before using the medication during pregnancy or breastfeeding to weigh the benefits against the risks.
The medication should be stored out of reach of children and at room temperature.
Frequently Asked Questions (FAQ)
1. What is the difference between Fusi cream and Fusi ointment?
The main difference lies in the base of each preparation. The cream has a water base, which makes it lighter and easier to absorb, suitable for moist or weeping skin areas and for use on the face. The ointment has an oil base, which makes it thicker and provides a more protective and moisturizing layer.
The ointment is preferred for dry, scaly areas, or those needing extra protection, such as wounds covered with dressings. The doctor determines the most suitable type based on the nature and location of the infection.
2. Can Fusi be used to treat acne?
Yes, Fusi can be used in some cases of acne, especially the inflammatory type caused by bacteria. Fusidic acid works to kill these bacteria and reduce the inflammation associated with pimples and pustules. It is usually used as a short-term spot treatment for inflamed pimples.
However, Fusi is not considered a primary long-term treatment for acne, as prolonged use may lead to resistant bacteria. A dermatologist should be consulted to determine the appropriate treatment plan for your condition.
3. How long should I use Fusi?
The duration of treatment depends on the severity and type of infection, and you should always follow your doctor’s recommendations. Generally, topical antibiotics like Fusi are used for a relatively short period, typically ranging from 7 to 10 days. This duration is usually sufficient to eliminate the bacterial infection.
It is very important to complete the full prescribed course of treatment, even if symptoms begin to improve early. Stopping the medication prematurely may allow the remaining bacteria to grow back, leading to a recurrence of the infection.
4. Can Fusi be used on open wounds?
Yes, Fusi can be used on superficial open wounds, such as scrapes or small cuts, to prevent a bacterial infection or to treat an existing one. The medication helps keep the wound free of bacteria and promotes the healing process.
Before applying the ointment or cream, the wound should be gently cleaned with water and dried thoroughly. It is not recommended for deep or large wounds, as these conditions require specialized medical care.
5. Does Fusi treat fungal infections?
No, Fusi is an antibiotic effective only against bacteria and has no effect on fungi or viruses. Using it to treat a fungal infection, such as ringworm or athlete’s foot, will not be effective and may worsen the problem.
If you are unsure about the nature of your skin inflammation, it is essential to consult a doctor for a proper diagnosis. The doctor will prescribe an antifungal medication if the infection is fungal.
6. Is Fusi safe for children and infants?
Yes, Fusi is generally considered safe for use in children and infants to treat bacterial skin infections like impetigo. A very small amount of the drug is absorbed through the skin into the bloodstream, which reduces the risk of systemic side effects.
However, it should always be used under medical supervision in this age group. When used on infants in the diaper area, diapers can act as an occlusive dressing, increasing drug absorption, so it is important to follow the doctor’s instructions precisely.
7. Can I use Fusi on sensitive areas?
Fusi can be used on the external skin of sensitive areas if there is a bacterial infection requiring treatment, such as folliculitis after hair removal. However, it should be used with extreme caution, and contact with mucous membranes should be avoided.
It should not be used inside the vagina or to treat fungal infections like “Candida,” which are common in these areas. Always consult a doctor before using any medication in sensitive areas to confirm the correct diagnosis.
8. What should I do if the cream gets in my eyes?
If Fusi accidentally gets into your eyes, it may cause a burning sensation and irritation. You should immediately rinse your eyes with a large amount of cold water or saline solution for 10-15 minutes to remove any residue of the product.
If irritation or redness persists, or if you notice blurred vision after rinsing, you should contact your doctor. To avoid this, always be careful when applying the medication on the face near the eye area.
9. Do I need a prescription to buy Fusi?
Dispensing policies vary from country to country. In many countries, Fusi is considered a prescription-only medication to ensure it is used correctly for appropriate conditions and to avoid the problem of antibiotic resistance.
Even if it is available without a prescription in your area, it is always best to consult a doctor or pharmacist before using it to confirm that the infection is indeed bacterial and that this is the appropriate treatment for it.
10. What are the signs of an allergy to Fusi?
Although rare, allergic reactions to Fusi can occur. Mild signs include worsening itching, redness, and a rash in the treated area. Signs of a severe and serious allergic reaction require immediate medical attention.
These serious signs include: widespread hives, swelling of the face, lips, tongue, or throat, and difficulty breathing. If you experience any of these symptoms, stop using the medication and seek emergency medical help.
Disclaimer and Information Sources
- Content Purpose: The information in this guide is for awareness and educational purposes only and is not a substitute for professional medical advice. Do not use this or any other medication without consulting your doctor or pharmacist.
- Source of Information: This content was prepared based on official, documented medical sources appropriate for the topic (such as official drug leaflets, health ministry guidelines, FDA directives, or specialized medical organizations).
- Publication Date | Last Updated: September 21, 2025
Dr. Ahmad Baker, PharmD
Senior Pharmacist & Health Educator
With over 23 years of clinical experience in hospital and community pharmacy across Egypt and Saudi Arabia, Dr. Ahmad specializes in reproductive health and pharmaceutical safety. He is dedicated to providing evidence-based guidance to empower patients in the MENA region.
Medical Disclaimer: This content is for educational purposes and reflects the latest pharmaceutical protocols. It is not a substitute for personal medical advice. Always consult Dr. Ahmad Baker or your healthcare provider before starting any treatment.