Что будет, если тебя укусит блоха? - briefly
A flea bite usually produces a tiny, itchy red bump with a central puncture point; occasionally it can transmit pathogens such as plague or murine typhus. Symptoms generally subside within a few days, often aided by antihistamines or topical steroids.
Что будет, если тебя укусит блоха? - in detail
A flea bite penetrates the epidermis with a short, serrated proboscis, injecting saliva that contains anticoagulants and irritants. The immediate response is a small, red papule surrounded by a halo of erythema. Itches intensely within minutes and may develop a raised wheal. The lesion typically persists for 24–48 hours, then fades over three to seven days if left untouched.
Possible complications include:
- Allergic reactions – sensitized individuals can experience larger wheals, urticaria, or, rarely, anaphylaxis. Symptoms appear within an hour and may require oral antihistamines or systemic corticosteroids.
- Secondary bacterial infection – scratching breaks the skin barrier, allowing Staphylococcus aureus or Streptococcus pyogenes to colonize the site. Signs are increasing pain, purulent discharge, and spreading redness; treatment involves topical or oral antibiotics.
- Vector‑borne diseases – fleas are competent carriers of several pathogens. Bites can transmit Yersinia pestis (plague), Rickettsia typhi (murine typhus), and Bartonella spp. (cat‑scratch disease). Clinical manifestations vary from fever and lymphadenopathy to severe systemic illness; prompt antimicrobial therapy is essential.
Management steps:
- Clean the area with mild soap and water.
- Apply a cold compress to reduce swelling and itching.
- Use over‑the‑counter antihistamine tablets or topical corticosteroid cream for mild irritation.
- Seek medical evaluation if the bite enlarges rapidly, becomes painful, shows pus, or if systemic symptoms such as fever, chills, or malaise develop.
Prevention focuses on controlling flea populations on pets and in the environment. Regular veterinary ectoparasite treatments, frequent vacuuming, and washing bedding at high temperatures diminish exposure risk.