Flea bite - close-up
Fleas are blood-feeding insects. Pain and itching results from an allergic reaction to the materials that the fleas inject into the skin at the time of the bite.
Review Date: 04/27/2006
Reviewed By: Michael Lehrer, M.D., Department of Dermatology, University of
Pennsylvania Medical Center, Philadelphia, PA. Review provided by
VeriMed Healthcare Network.
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