If this is the situation that a 38-year-old woman was bitten by fire ants while at the park. And primary assessment reveals that:
she is semiconscious;
has labored breathing;
and has a rapid, thready pulse
has red rash on her entire body and her face is swollen.
The first step I will take is to assist her ventilations with 100% oxygen because she feels difficulty in breathing. To keep her alive, giving oxygen to her is the first step. Other medical treatment will be provided after that.