Fleas (patient information)
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Fleas |
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Fleas On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Fleas are blood-sucking insects that feed on humans, dog, cats, and other animals. Fleas do not have wings
What are the symptoms of Fleas?
- Hives
- Itching (can be severe, and may be all over or just where the rash is located)
- Rash with small bumps that itch and may bleed
- Located on the armpit or fold of a joint (at the elbow, knee, or ankle)
- The amount of skin affected increases over time (enlarging skin rash or lesion) or the rash spreads to other areas
- When pressed the area turns white (blanches to touch)
Skin folds, such as under the breasts or in the groin may be affected (intertrigo) Swelling only around a sore or injury
Note: Symptoms often begin suddenly (within hours).
What causes Fleas?
Fleas prefer to live on dogs and cats, but may also be found on humans and other available animals.
Who is at highest risk?
Pet owners may not be bothered by fleas until their pet is gone for a long period of time, and the fleas must find another place to go. This is when they begin to bite humans. Bites often occur around the waist, ankles, armpits, and in the bend of the elbows and knees.
Diagnosis
No testing is necessary.
Treatment options
The goal of treatment is to get rid of the fleas by treating the home, pets, and outside areas with insecticide. Small children should not be in the home when insecticides are being used. Birds and fish must be protected during spraying. Home foggers and flea collars do not always work. If home treatments do not work, professional extermination may be needed.
If flea bites occur, an over-the-counter 1% hydrocortisone cream can help relieve itching.
Where to find medical care for Fleas?
Directions to Hospitals Treating Fleas
What to expect (Outlook/Prognosis)?
Getting rid of fleas can be difficult and takes persistence.
Possible complications
Scratching can lead to a skin infection.
Prevention of Fleas
Prevention may not be possible in all cases. Use of insecticides may be helpful if fleas are common in your area. Professional extermination may be necessary in some cases