Do Mosquitoes Cause Hives?

Often, a question is asked, “Do mosquitoes cause hives?” Some people experience hives after a mosquito bite, while others do not. Hives can be caused by an allergic reaction to the bite, or they can be a symptom of a viral infection.

Hives are often very itchy. You may have swelling at the bite site, which may last for a week or more. Taking an over-the-counter antihistamine may help relieve itching. You can also apply a steroid cream to reduce swelling. Using homemade anti-itch pastes may also relieve itching.

The main reason hives appear is an immune system reaction. Mosquitoes produce a chemical called histamine, which causes itching. Some people experience a whole-body hive while others only have small bumps. Hives are usually harmless, but if you have a severe allergic reaction, seek medical attention immediately.

You can also have a viral infection, such as a cold, which can trigger hives. There are several factors that determine how severe your allergic reaction is.

The most severe allergic reaction is called anaphylaxis. It can be life threatening. If your child has anaphylaxis, wear a medical alert pendant. You may also need to call an ambulance.

People with anaphylaxis can experience high-grade fever, abdominal pain, and diarrhea. They may also have difficulty breathing. Some people also have a rapid heartbeat.

Depending on the severity of your reaction, your child’s health care provider may prescribe an epinephrine injection, a steroid cream, or an antibiotic ointment. You should follow the instructions on the product label for applying the medication.