Mosquito bites: When to call the doctor

Fourth of July celebrations draw people outdoors, where mosquitoes often have their own backyard feast.

According to WRAL's Dr. Allen Mask, these pests can cause more than just an itch -- their bite can be a potential health threat.

Severe mosquito-related illness is rare but can be deadly in some cases. It's always a good idea to check with your doctor if you're sick, especially if you believe it could be from a mosquito bite.

A recent report from the Centers for Disease Control and Prevention shows illnesses caused by mosquitoes have risen in recent years. To reduce the risk around your home, dumping standing water is the best place to start.

"A classic example would be old tires that will hold rainwater inside them," said Dr. Alan Taege from the Cleveland Clinic. "It's a perfect area for the mosquitoes to breed and multiply, or even puddles and ponds of water just sitting around in your yard and other areas, because this is where mosquitoes like to breed."

Dr. Taege says mosquito repellant offers effective protection against bites. For best results, look for the ingredient DEET. Wearing long-sleeved shirts and long pants is also a good way to prevent most bites if you can stand the heat.

To keep mosquitoes outside, so be sure windows and door screens are intact.

According to doctors, the most common mosquito-borne illnesses are West Nile, Dengue and Zika. Not all mosquitos are infected by these diseases, so most people won't get sick from a mosquito-related infection.

If infected, some people will develop symptoms typically within a week of the bite.

"It's usually fever and body aches, sometimes a rash," said Dr.Taege. "People know that something's going on. It's usually not subtle."