The main reactions after insect stings are itching, swelling, and redness at the site of the sting. Some times swelling becomes expanded . Local treatment is usually all that is needed for this type of reaction. Wash the area, keep it clean, and apply ice. Ice can also help a sting feel better.Topical corticosteroid creams are sometimes used to decrease inflammation, and antihistamines can help control itching.
Large local reactions may involve increased swelling that may be accompanied by nausea and vomiting . Large local reactions occur in about 10% of insect stings and are not allergic in origin. Occasionally, the site of an insect sting will become infected, and antibiotics are needed.
The allergic reaction to an insect sting varies from person to person. Symptoms of an allergic reaction can include itching, hives, flushing of the skin, tingling or itching inside the mouth, and nausea or vomiting. The most serious allergic reaction is called anaphylaxis, which can be fatal. Difficult in breathing, swallowing, swelling of the tongue, are signs of a severe allergic reaction
Stings of insects and spiders are manifested by the appearance of local pruritic areas , erythematous and edematiate, more or less painful. These reactions are normal and have a duration ranging from several hours to several days. Often, the only appropriate treatment is local, which is administered at home, not being required the patient hospitalization. There are patients who have more intense reactions to stings of this type, their bodies are more sensitive. Most affected are infants and children,adults better supporting such aggression.
There are many conditions, diseases and risk factors that can greatly influence how the body cope with an insect sting. The most important such conditions are:
- Age: young children and the elderly over 60 years may have a worse evolution compared with healthy young adults;
- History of allergic reactions: anaphylaxis, excessive skin sensitivity, toxic reactions, serum sickness;
- Latest travel in exotic countries, endemic for vector-borne communicable diseases such as insects;
- Operation of splenectomy;
- Abuse of alcohol or abstinence syndrome;
- Consumption of drugs;
If patients have a particular treatment, it must be told to the doctor. Special attention (in these considerations) should be given to treatment with:
- Converting enzyme inhibitors (CEI);
- Beta blockers;
- Corticosteroids such as prednisone;
- Specific medication after organ transplantation;
Chronic diseases that can affect how the body responds well to aggression,also the treatment that can stop severe evolution of inflammation and allergy are:
- Heart disease, ischemic heart disease;
- High blood pressure;
- HIV infection;
- Lung disease, mainly chronic obstructive pulmonary disease;
- Peripheral arterial.