What should I apply after a bed bug bite? - briefly
Wash the bite with mild soap and water to remove irritants. Then apply a 1% hydrocortisone or antihistamine cream, optionally using a cold compress to lessen itching and swelling.
What should I apply after a bed bug bite? - in detail
A bed‑bug bite typically causes a small, red, itchy welt that may develop a raised bump. The skin’s reaction can last from a few hours to several days, depending on individual sensitivity.
The first step is to cleanse the area with mild soap and lukewarm water. This reduces the risk of infection and removes any residual debris. Pat the skin dry with a clean towel; do not rub, as friction can worsen irritation.
Topical agents that calm itching and inflammation include:
- Over‑the‑counter hydrocortisone cream (1 %). Apply a thin layer 2–3 times daily for up to 7 days.
- Calamine lotion. Dab lightly to soothe and dry the lesion.
- Antihistamine ointments containing diphenhydramine. Use sparingly, as excessive application may cause skin dryness.
- Aloe‑vera gel. Provides cooling relief and supports skin healing.
If itching is severe, oral antihistamines are effective:
- Cetirizine 10 mg once daily.
- Diphenhydramine 25–50 mg every 4–6 hours, not exceeding 300 mg per day.
- Loratadine 10 mg once daily.
Non‑medicinal measures that help:
- Cold compress for 10–15 minutes, repeated several times a day, to reduce swelling.
- Keep fingernails trimmed to prevent secondary infection from scratching.
- Apply a thin layer of petroleum jelly to create a barrier that limits moisture loss.
Monitor the bite for signs of infection: increasing redness, warmth, pus, or fever. Seek medical attention if any of these develop, or if the reaction spreads beyond the bite site.
For individuals with known allergic reactions to insect bites, a short course of oral corticosteroids (e.g., prednisone 20 mg daily for 3 days) may be prescribed by a physician to control severe inflammation.
In summary, immediate cleansing, topical corticosteroids or soothing lotions, oral antihistamines for itch control, and vigilant observation for infection constitute a comprehensive approach to managing bed‑bug bite lesions.