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Mrsa (methicillin-resistant Staphylococcus Aureus)


MRSA (methicillin-resistant Staphylococcus aureus)

is a strain of staph bacteria that can cause infection. Usually, antibiotics are used to kill bacteria. MRSA bacteria are resistant to the common antibiotics used to treat Staph infections. This makes MRSA hard to treat. MRSA most commonly causes a skin or soft tissue infection. Bacteria may get into your skin or soft tissue through a cut, sore, or incision. MRSA may spread to your blood, lungs, heart, and bone.

Signs and symptoms:

  • Skin sores
  • Bumps on your skin that are red and painful
  • A cut or incision that is red, swollen, and filled with pus
  • Fluid-filled blisters
  • Fever

Seek care immediately if:

  • You develop new symptoms such as a cough or fever during or after treatment for MRSA infection.
  • Your symptoms get worse.

Contact your healthcare provider if:

  • Your symptoms return after treatment.
  • You have questions and concerns about your condition or care.

Treatment for MRSA

includes any of the following:

  • Antibiotics may help treat the bacterial infection. Take all of your antibiotics until they are finished.
  • Incision and drainage of a wound, a sore or an abscess may be needed. A provider will open and drain infected fluid and pus. This helps remove bacteria from your wound so it can heal.

Follow up with your healthcare provider within 2 days or as directed:

You may be referred to an infectious disease specialist. You may need an exam or more tests to make sure your infection is healing. Write down your questions so you remember to ask them during your visits.

Prevent the spread of MRSA:

Do the following if you have an active MRSA infection:

  • Wash your hands often. Ask others in your home to wash their hands often. This is the most important thing you can do to prevent the spread of infection. Wash your hands several times each day, especially before and after you change your bandage. If someone else changes your bandage, they should wash their hands after. Carry germ-killing gel with you and use it to clean your hands when you have no soap and water.
  • Do not touch sores. Do not poke or squeeze sores. This can make the infection go deeper into your tissue.
  • Cover infected sores with a bandage. Make sure the sore is completely covered during activities that may cause skin to skin contact with another person. Examples include sports such as wrestling or football. Put an extra bandage on a sore that is draining fluid. This helps keep infected drainage off surfaces that others can touch.
  • Do not share personal items with others. This includes washcloths, towels, uniforms, clothes, and razors.
  • Do not use public pools, hot tubs, or therapy pools until your infection has healed. Your infected sore can spread the infection to another person through the water.
  • Tell all healthcare providers that you have a MRSA infection. If you are admitted to the hospital, you may be placed in a private room. Healthcare providers will wear gowns and gloves when they come into your room. They will also wash their hands often and clean your room well. Your visitors may also be asked to wear a gown and gloves. All of these practices help prevent the spread of MRSA to healthcare providers and other patients.

MRSA and your home:

MRSA can stay on surfaces for weeks. It is important to keep others safe by doing the following:

  • Clean surfaces daily with a disinfectant. Follow directions on the label for how to apply the disinfectant. Items that you use often should be cleaned daily. Examples include kitchen or bathroom counters, phones, doorknobs, and remote controls. Clean the shower or bathtub after each use.
  • Wash dishes and silverware in a dishwasher or in hot water. Do not share unwashed dishes or silverware with anyone.
  • Wash used sheets, towels, and clothes with water and laundry detergent. Put dirty laundry in the washer immediately. Put it in a plastic bag if you are not able to wash it immediately. You do no need to wash this laundry separately from other laundry. Use the warmest water possible for the type of clothing. Wash your hands after you touch dirty laundry and before you handle clean laundry. Dry laundry completely in a warm or hot dryer.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Learn more about Mrsa (methicillin-resistant Staphylococcus Aureus) (Ambulatory Care)

Associated drugs

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Mayo Clinic Reference