Fleas are parasites that feed on the blood of animals and humans. These creatures are wingless, but can jump from host to host. Fleas are generally no more than 3.3 millimeters in length and are thus difficult catch and kill. Though it is rare that fleas will live off of human blood, fleas do sometimes attach to humans when they jump off of domesticated dogs and cats as well as other animals such as horses. Because fleas reproduce quickly (eggs are laid in batches of 20 and female fleas lay up to 600 eggs in their 30-90 day life spans), it is often difficult for homeowners to rid fleas from their homes once they become infected. If you suspect your home is infected with fleas, contact a professional exterminator and visit a physician immediately.
Pulicosis is the skin condition caused by flea bites on humans. People can be diagnosed with pulicosis after only one bite and the condition can range from mild to severe. After the human is bitten by the flea, a small, hard red spot will generally appear. This spot will typically not be itchy at first, though it will be raised. Some people can have extremely negative reactions to flea bites that include ulcers in the throat and mouth, restlessness and soreness of the areolas. If you are experiencing these symptoms, seek immediate medical attention because these symptoms could spread in less than a week and affect the central nervous system. If this occurs, permanent nerve damage may occur.
However, not all flea bites lead to these serious conditions. If you suspect you have been bitten by a flea or by many fleas, clean the affected area with antiseptic lotion or soap and cold water. Do not scratch inflamed areas, but rather use hydrocortisone cream to ease the discomfort.
To avoid additional flea bites, you will need to rid your home of these small parasites. Make sure your dog or cat has been properly treated for fleas and make sure that carpets, sofas and other fabric in your home has been thoroughly cleaned. You may also want to look into professional flea removal to ensure your home and your family is safe.