The symptoms of insect bites and stings result from the injection of material into the host. This material can include toxins, or may be proteins or other materials capable of initiating an allergic reaction in the host. Most bites result in local symptoms only. However, certain insects can inject a very potent, or deadly, toxin that affects the entire body. In addition, if you have developed a hypersensitivity to a particular bite, an allergic reaction can occur. In the most extreme form, this can produce anaphylaxis, where there is compromise of the lungs and blood pressure.
Causes of Insect Bites And Stings
Cause is due to a bites or stings from mosquitoes, fleas, chiggers, bed-bugs, ants, spiders, bees, scorpions and other insects. The may release of venom or toxin into the skin. They may release compounds which produce an allergic reaction.
Signs and Symptoms of Insect Bites And Stings
Skin reactions include red lumps in the skin. They may appear within minutes after the bite or sting, or may not appear for 6 to 12 hours. Toxic reactions produce pain. These occur in such instances as bee stings. Itching may occur, due to the release of histamine from the body at the bite or sting site, such as occurs with mosquito bites. Systemic reactions include nausea, vomiting, and headache. Fever, dizziness, light-headedness, swelling, and convulsions can ensue. Allergic reactions vary in severity. There can be itching eyes, facial flushing and dry cough. If you are hypersensitive to the sting or bite, an overwhelming anaphylactic reaction can rapidly develop, leading to wheezing, and chest/throat constriction, and, sometimes, death..
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Medical Content Last Updated on 07/12/2008
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