How to get rid of fleas in the house and on a person?

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How to get rid of fleas in the house and on a person? - briefly
Thoroughly vacuum carpets and upholstery, wash all bedding and fabrics in hot water, and apply an EPA‑approved insecticide spray to cracks, baseboards, and pet areas. Then treat people with a flea‑killing shampoo or a prescription topical/oral medication approved for human use, ensuring repeat applications according to product directions.

How to get rid of fleas in the house and on a person? - in detail
Fleas thrive in warm, humid environments and multiply quickly, so an effective eradication plan must address the entire habitat—carpets, furniture, bedding, pets, and the human body.
First, treat the indoor environment.

Vacuum thoroughly

All carpeted areas, rugs, and upholstery.
Mattress seams, under furniture, and floorboards.
Empty the canister or bag into a sealed plastic bag after each session and discard it outside.

Wash textiles at high temperature

Bedding, curtains, pet blankets, and removable cushion covers.
Use water at least 60 °C (140 °F) and dry on a hot setting for a minimum of 30 minutes.

Apply an insecticidal spray or fogger

Choose a product labeled for indoor flea control, containing adulticide (e.g., permethrin, cyfluthrin) and larvicide (e.g., methoprene, pyriproxyfen).
Follow label directions for dosage, room size, and ventilation.
Treat cracks, baseboards, and under furniture where larvae hide.

Use diatomaceous earth

Lightly dust carpet fibers and floor seams.
Leave for 48 hours, then vacuum.

Maintain low humidity

Keep indoor relative humidity below 50 % to inhibit egg and larval development.

Second, address pets, the primary flea hosts.

Administer a veterinarian‑approved topical or oral flea treatment (e.g., fipronil, selamectin, or a monthly isoxazoline).
Bathe the animal with a flea‑killing shampoo, focusing on the neck, tail base, and belly.
Comb with a fine‑toothed flea comb daily for several weeks, disposing of captured insects in alcohol.

Third, treat the human host.

Shower with hot water and a medicated anti‑lice/flea shampoo containing pyrethrins or permethrin.
Wash all clothing and towels used during the infestation in hot water, then dry on high heat.
Apply a topical antiparasitic cream (e.g., 0.5 % permethrin) to affected skin areas if bites cause irritation, following medical guidance.

Finally, monitor and repeat.

Inspect pets, bedding, and living spaces weekly for at least six weeks, the typical flea life cycle duration.
Re‑vacuum and re‑treat as needed until no live fleas are detected.

Combining rigorous environmental sanitation, targeted chemical control, and consistent pet treatment eliminates the flea population and prevents re‑infestation.