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Insect Bites and Stings
BASIC INFORMATION DESCRIPTION Skin eruptions and other symptoms caused by insect bites or stings. The victim often doesn't remember being bitten or stung. FREQUENT SIGNS AND SYMPTOMS Skin reactions: Red lumps in the skin. The lumps usually appear within minutes after the bite or sting, but some don't appear for 6 to 12 hours. A toxic reaction with pain, such as from bee stings. A toxic reaction with itching due to the body's release of histamine at the bite site, such as from mosquitoes. Systemic reactions: Nausea or vorniting. Headache. Fever. Dizziness; lightheadedness. Swelling. Allergic reactions: Itching eyes. Facial flushing. Dry cough; wheezing. Chest/throat constriction. CAUSES Bites or stings from mosquitoes, fleas, chiggers, bedbugs, ants, spiders, bees, scorpions and other insects. PREVENTIVE MEASURES After identifying the cause, remove it if possible. Treat animals for fleas and exterminate the house or kennel. If you cannot avoid exposure, apply insect repellents with diethyltoluamide EXPECTED OUTCOME Most troublesome symptoms disappear in 2 to 3 days, but scratching may prolong symptoms for several weeks. Treatment helps, but it doesn't cure quickly. POSSIBLE COMPLICATIONS Secondary bacterial infection at the site of the bite. This may cause swollen lymph glands in the neck, armpit, groin or elbow. Anaphylaxis (life threatening allergic reaction) for hyper sensitive persons Scarring. TREATMENT GENERAL MEASURES First-aid measures and emergency services in severe reactions. Remove stinger (scrape it out. Don't use tweezers). For bee, wasp, yellow-jacket or hornet stings rub a paste of meat tenderizer and water into the site. For ant bites rub bite with ammonia; repeat as often as necessary. For spider or scorpion bites, capture the insect if possible, and seek medical attention. For ticks and mites, apply a petroleum product until the animal withdraws. Clean wound. Apply ice pack. Elevate and rest the affected body part. Use immersion or wrapped soaks to relieve itching and hasten healing. Warm-water soaks are usually more soothing for pain or inflammation. Cool-water soaks feel better for itching. if you have had anaphylaxis (severe allergic reaction) following an insect bite, carry an anaphylaxis kit to treat it in the future. MEDICATION For minor discomfort, you may use: Non-prescription oral antihistamines to decrease itching. Non-prescription topical steroid preparations to reduce inflammation and decrease itching. Use according to label directions. For serious symptoms, you may be prescribed: Stronger topical steroids or oral steroids if the reaction is severe. Injection of epinephrine or cortisone to prevent or diminish anaphylaxis symptoms. Tetanus prophylaxis if needed. NOTIFY OUR OFFICE IF You or a family member has symptoms of anaphylaxis This is an emergency! - Self-care does not relieve symptoms, or symptoms don't improve after 2 to 3 days of medical treatment. - A bitten area becomes red, swollen, warm and tender, indicating infection. - Temperature rises to 101 F (38.3'C) Back to Educational Material |