The blisters that develop after fire ant bites are allergic reactions, but some people develop more severe reactions. The areas immediately surrounding the bite may swell, burn, or itch.
Severe allergic reactions known as anaphylaxis are less common, but can be life-threatening. People with severe allergies to fire ant venom typically develop symptoms within a few minutes after being bitten.
The following symptoms need emergency medical help:
* Trouble with breathing
* Swelling of the tongue or throat
* Loss of consciousness
If left untreated, these allergic reactions can cause the body to go into shock.