When a person is allergic to fleas, the immune system responds to proteins in the flea’s saliva that are injected into the skin during a bite. The most common reaction is an itchy rash at the site of the flea bite. Other symptoms may include redness, swelling, and hives.
The most common form of human allergy to fleas occurs when people are bitten by fleas. People who have been bitten by fleas can develop an allergy to the proteins in their saliva, which causes a reaction similar to one caused by bee stings or other insect bites.
In rare cases, humans can develop an allergy to fleas even if they have never been bitten by one before. This type of allergy develops after exposure to certain types of dust or other particles that contain tiny flea droppings (called “flea dander”, which contains bits of dried blood). The dust can be found in carpets, upholstered furniture, and even clothing made from wool or cotton fabrics (which are sometimes used as bedding for pets).

Multiple lesions and solar erythema due to flea bites in the leg of a 32-year-old man
How Do You Treat Flea Allergy in Humans?
When a person is allergic to fleas, the immune system responds to proteins in the flea’s saliva that are injected into the skin during a bite. The most common reaction is an itchy rash at the site of the flea bite. Other symptoms may include redness, swelling, and hives.
The most common form of human allergy to fleas occurs when people are bitten by fleas. People who have been bitten by fleas can develop an allergy to the proteins in their saliva, which causes a reaction similar to one caused by bee stings or other insect bites.
In rare cases, humans can develop an allergy to fleas even if they have never been bitten by one before. This type of allergy develops after exposure to certain types of dust or other particles that contain tiny flea droppings (called “flea dander”, which contains bits of dried blood). The dust can be found in carpets, upholstered furniture, and even clothing made from wool or cotton fabrics (which are sometimes used as bedding for pets).
What Are the Signs of Being Allergic to Fleas?
The most common sign of being allergic to fleas is redness and itching, which occurs on the skin where the flea has bitten. Other signs of an allergic reaction to fleas include hives, a rash, or dry skin.
If you have been bitten by a flea, you might also experience symptoms like sneezing, runny nose, or watery eyes. If your dog or cat has been bitten by a flea, they may experience diarrhea and vomiting.
Anaphylaxis is a severe reaction that can occur in some people who are allergic to fleas. It involves swelling of the lips, tongue, and throat with difficulty breathing and swallowing; it requires emergency medical attention and treatment.
What Happens if You Are Allergic to Fleas?
If you are allergic to fleas, it means that your body is having an allergic reaction to the flea’s saliva. The allergy is caused by a protein in the saliva called tropomyosin.
If you are allergic to fleas, you may experience symptoms such as itching, swelling of the lips and tongue, hives, or even anaphylaxis (a severe, life-threatening allergic reaction).
The most common sign of being allergic to fleas is itching on your skin when you come into contact with them. This can be especially annoying if the flea bites you and leaves its mark.
If you have a family member who is allergic to fleas, it’s important that everyone in your household knows about their allergies and takes precautions to avoid coming into contact with them.
What Home Remedy Keeps Fleas off Humans?
There are many home remedies that keep fleas off humans, and the best way to get rid of them is to use a combination of these methods.
One home remedy is vinegar. Vinegar has been shown to be an effective flea killer, and it’s easy to apply—you just need a spray bottle. Just mix one part water with two parts vinegar, shake well, and spray on your pet’s fur. Let it sit for a few minutes before rinsing off with cold water.
Another home remedy is baking soda. Baking soda also kills fleas, but you should only use this if you have pets that can’t tolerate the vinegar solution (like cats). It too can be mixed into a spray bottle, but add three tablespoons of baking soda per gallon of water instead of two parts water to one part vinegar.
You can also try using essential oils like eucalyptus or citronella in a diffuser near where your pet spends most of its time or in an oil burner near your pet’s bedding so that it will inhale the vapors throughout the day. This will help repel fleas from coming anywhere near either animals or humans alike.
List Of Products To Relieve Humans Allergy To Fleas
Flea allergies are an itchy, uncomfortable condition that can last for years if not treated properly. The good news is that there are many different products that can help relieve this allergy, as long as you can find the right one for your needs.

Anti-Allergen Pet Shampoo – Best Dog & Cat Dander Allergy Remover for Reducing Fleas, Ticks, & Allergies, Gentle Hypoallergenic Formula for Dry Sensitive Skin & Allergy Relief by The Ecology Works
Price : $12.99
Features :
- Breathe Easy Once Again – Neutralize allergy causing contaminants like pet dander, fleas, dust mites, and ticks with a single powerful shampoo.
- All-in-One Solution – Anti-allergen shampoo deeply cleanses the fur and skin from irritating contaminants while simultaneously working as a gentle conditioner for a softer, shinier coat.
- Developed for Sensitive Skin – Hypoallergenic formula is anti-itch, contains no harsh chemicals or toxins, and is gentle on dogs, cats, and small animals.
- Say Goodbye to Allergy Symptoms – Pet Dander is one of the most common causes of symptoms like sneezing, coughing, and watery eyes. Our Dog & Cat Allergy Shampoo helps remove these contaminants from the coat and reduce symptom triggers in your home.
- Advanced Odor Protection Technology – With a proprietary sustained release system for lasting odor protection, our pet shampoo will keep your pet smelling fresh for longer.
Additional Info :

Vet’s Best Flea and Tick Home Spray | Flea Treatment for Dogs and Home | Plant-Based Formula | 32 Ounces
Price : $9.97
Features :
- GENTLE PROTECTION: Vet’s Best Flea & Tick Home Spray uses certified natural ingredients to kill fleas, flea eggs, and ticks on contact.
- PROVEN EFFECTIVE: Whether facing an active infestation or are applying for routine prevention, our spray is scientifically proven effective against pests but gentle enough to use around the whole family.
- CERTIFIED NATURAL OILS: Each steam-distilled essential oil is selected for its potent pest-fighting properties and is 100% Certified Natural.
- TOTAL HOME DEFENSE: Applies easily on surfaces, indoors and out, including dog bedding, crates, furniture, blankets, upholstery, carpets, outdoor surfaces, and more. Also gentle enough to be applied directly on dogs and puppies 12 weeks or older.
- MADE IN THE USA: Our products are proudly manufactured in the USA with quality domestic and internationally sourced ingredients.
Additional Info :
Color | Green |
Item Dimensions | |
Height | 0.81 Inches |
Width | 3.38 Inches |
Length | 3.38 Inches |
Weight | 2 Pounds |

FRONTLINE Plus for Cats and Kittens (1.5 pounds and over) Flea and Tick Treatment, 3 Doses
Price : $38.99
Features :
- Waterproof flea and tick treatment for cats and kittens: Frontline Plus for Cats provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your cat. This product is approved for use on cats and kittens 1.5 lbs and over.
- Break the flea life cycle with frontline: Frontline flea and tick treatment for cats kills adult fleas plus flea eggs and larvae to stop existing infestations and prevent establishment of new infestations.
- Kills fleas and ticks: Frontline flea and tick treatment for cats kills fleas, flea eggs, lice, and ticks. This flea and tick treatment kills ticks, including those that may transmit Lyme disease.
- Trusted flea and tick protection for cats: Frontline Plus for Cats has been trusted by veterinarians for nearly 20 years. Made with 2 tough killing ingredients, fipronil and (S)-methoprene – one to kill adult fleas and ticks and the second to kill flea eggs and larvae – this fast-acting, long-lasting protection provides flea and tick control for cats and kittens 8 weeks and older.
- Lasting flea and tick protection: Frontline’s long-lasting formula is stored in the oil glands of the cat’s skin to give non-stop flea and tick protection for a full 30 days. Frontline flea and tick treatment for cats works non-stop for a full 30 days. A 3-dose supply lasts for 3 months.
Additional Info :
Color | Green |
Item Dimensions | |
Height | 0.5 Inches |
Width | 4.5 Inches |
Length | 6 Inches |
Weight | 0.07054792384 Pounds |
In Conclusion,
Human allergies to fleas are a serious threat to the health and well-being of those who suffer from them. The symptoms of this condition include skin rashes, difficulty breathing, and even anaphylaxis.
Because it is caused by a parasite, it is possible to treat this allergy with medication that kills or prevents fleas infestation on your pet. However, there are also medications available to treat human allergies to fleas that can be taken orally or by injection.