What should be done if the leg swells after a bed bug bite? - briefly
Clean the bite site with mild soap, apply a cold compress, take an oral antihistamine, and keep the leg elevated to lessen swelling; avoid scratching. If the swelling continues, intensifies, or is accompanied by fever or severe pain, obtain medical evaluation promptly.
What should be done if the leg swells after a bed bug bite? - in detail
If a bite from a bed bug causes swelling in the leg, immediate care and assessment are essential.
First, clean the affected area with mild soap and lukewarm water to remove any irritants and reduce the risk of infection. Pat the skin dry with a clean towel; avoid rubbing, which can worsen inflammation.
Apply a cold compress or an ice pack wrapped in a cloth for 10–15 minutes, repeating every hour as needed. The cold stimulus constricts blood vessels, decreasing edema and providing temporary pain relief.
For persistent swelling, an over‑the‑counter antihistamine (e.g., diphenhydramine, cetirizine) can be taken according to the package dosage. Antihistamines block histamine release, limiting the allergic response that often accompanies bed‑bug bites.
If the bite is painful or inflamed, a topical corticosteroid cream (e.g., hydrocortisone 1 %) may be applied thinly to the skin two to three times daily. Do not use the medication on broken skin or apply for more than a week without medical guidance.
Monitor the reaction for signs of infection: increasing redness, warmth, pus, or fever. Should any of these symptoms appear, seek professional medical attention promptly.
In cases where swelling spreads rapidly, the leg becomes markedly painful, or there is difficulty moving the limb, treat the situation as an urgent concern and obtain emergency care.
After the acute phase, keep the area moisturized with a fragrance‑free lotion to support skin healing. Maintain a clean sleeping environment—wash bedding in hot water, vacuum mattresses, and consider encasing the mattress and box spring to prevent further bites.
Document the bite’s progression, medications taken, and any changes in condition; this record assists healthcare providers if a consultation becomes necessary.