can you be allergic to mosquito bites

Yes — you can be allergic to mosquito bites, though most people only get a small itchy bump. In some people, the reaction is much larger and more inflamed; this is often called Skeeter syndrome, and true body-wide severe reactions are rare.

What it can look like

Common signs include:

• Large swelling or redness around the bite.
• Intense itching, warmth, or pain.
• Blistering in more severe local reactions.
• Rarely, fever, hives beyond the bite area, wheezing, or trouble breathing.

When to get help

Seek medical care right away if you have trouble breathing, throat swelling, fainting, or rapidly spreading hives, since those can signal a severe allergic reaction. If the bite keeps getting worse, lasts several days without improving, or looks infected, it is also worth getting checked.

What helps

For mild to moderate reactions, cold compresses, oral antihistamines, and topical hydrocortisone can help reduce itching and swelling. Try not to scratch, because that can make irritation and infection more likely.

Bottom line

Most mosquito bites are annoying rather than dangerous, but a real allergic- type reaction is possible. If your reactions are unusually large or severe, an allergist or clinician can help confirm what is going on.