Cat Scratch Fever Symptoms and Treatment

Updated October 11, 2018
Cat Scratch Disease

Cat scratch fever, now called cat scratch disease (CSD), is not a serious illness for most people. However, it's good for anyone who comes in contact with cats to learn how to recognize the symptoms and the best way to treat them.

Symptoms of Cat Scratch Disease

Cat scratch disease is usually contracted after being scratched by a cat. On rare occasions, the disease is caused by being scratched by animals other than cats.

According to Melissa Stoppler, MD, the symptoms of cat scratch disease start to appear three to thirty days after the scratch, but most commonly in one to two weeks. The symptoms may include:

  • Pimples/nodules at the site of the scratch that last one to four weeks
  • Swollen, tender lymph nodes
  • Warm, red skin that lasts four to six weeks
  • Fatigue
  • Nausea
  • Vomiting
  • Fever (Develops in less than half of those infected)

The majority of people infected with cat scratch disease heal without needing any medication. Although most people recover in two to five months, it can take up to a year for the swelling to disappear completely from the lymph nodes.

Is Cat Scratch Fever Dangerous?

While the risk from cat scratch fever is small, it still can have severe effects for some people. The CDC believes approximately 4% of people who contract the disease end up in the hospital. The disease can lead to serious secondary infections such as encephalitis, endocarditis, and osteomyelitis. People more likely to be susceptible to severe complications from cat scratch fever are ones with a compromised or a weakened immune system such as young children under five years old or people with HIV, cancer, diabetes or a recent organ transplant. There is also some concern that cat scratch fever can cause complications for pregnant women, including miscarriage, but research results so far are inconclusive.

Misunderstood Disease

Cat scratch fever is not a particularly dangerous illness for most people, and the symptoms are usually very mild. Sadly, many people have been led to believe that cat scratches are dangerous to children and can even cause death. Most illnesses that children are exposed to at school, day care and other activities are far more harmful and dangerous. As a result of this unfounded fear of cat scratches, parents may have cats declawed, refuse to let their children have cats as pets, or get rid of the family cat after any minor incident.


Cat Scratch Fever

If you or your child is scratched, treat it like any other minor wound. According to, you should:

  • Rinse the scratch thoroughly with cool water
  • Gently pat it dry
  • Apply an antibiotic ointment or cover the scratch with a bandage if it's in an area that's like to get dirty or rubbed
  • Take a pain reliever to reduce any fever or discomfort
  • Ask your doctor about draining any particularly painful lymph nodes

Using alcohol or peroxide is generally not recommended because both can increase inflammation. The scratch should heal in a few days. If symptoms such as fever or swollen lymph nodes do appear, see a doctor to rule out other, possibly serious, illnesses. Cat scratch disease does not require medical attention, but you do not want to overlook a dangerous illness by assuming that the symptoms are related to the cat scratch.

Treatment for More Serious Cases

Sometimes a CSD infection can become more serious, especially when it's contracted by a person who already has a compromised immune system due to HIV infection or an autoimmune disorder. According to EMedicineHealth, infections that are more serious are usually treated with an antibiotic such as azithromycin, gentamicin, doxycycline, and ciprofloxacin.

Take Precautions, but Don't Worry

Bottom line, CSD doesn't appear to have a serious effect on the majority of people who contract it, and washing a scratch and treating it with some antibiotic ointment and a bandage is usually enough to keep an infection from getting out of hand. People with suppressed immune systems, pregnant women and young children should take the added precaution of seeking advice from their physicians and following any treatment plan prescribed.

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Cat Scratch Fever Symptoms and Treatment