Insect Bite Allergic Reaction Management in Children

Assessment and Immediate Treatment

The American Academy of Allergy, Asthma, and Immunology recommends checking for systemic symptoms immediately, including urticaria, angioedema, respiratory distress, hypotension, gastrointestinal symptoms, or altered mental status, and administering epinephrine 0.01 mg/kg (up to 0.3 mg in children) intramuscularly if ANY systemic symptoms are present 3
Antihistamines and corticosteroids are not substitutes for epinephrine in anaphylaxis, according to the American Academy of Allergy, Asthma, and Immunology 4

The American Academy of Allergy, Asthma, and Immunology suggests that oral corticosteroids like prednisone may be considered for severe large local reactions with extensive swelling, though definitive controlled trial evidence is lacking 1
Large local reactions present as extensive swelling at the sting site that increases over 24-48 hours and takes 5-10 days to resolve, and are IgE-mediated allergic inflammation, not infection 2

The American Academy of Pediatrics recommends using cold compresses to reduce local pain and swelling, oral antihistamines to reduce itching, pain, and inflammation, and oral analgesics for pain management 2
Elevating the affected limb if swelling is significant is also recommended 2

The American Academy of Pediatrics typically uses prednisone 1-2 mg/kg/day (maximum 60 mg/day) for 3-5 days for severe allergic reactions in children, after ruling out systemic symptoms requiring epinephrine 2

The American Academy of Allergy, Asthma, and Immunology advises against prescribing antibiotics for local swelling without clear signs of secondary bacterial infection, and against delaying epinephrine if systemic symptoms develop 1
The American Academy of Allergy, Asthma, and Immunology also recommends against using corticosteroids as monotherapy for systemic reactions 4

The American Academy of Allergy, Asthma, and Immunology recommends referring patients with systemic reactions to an allergist-immunologist for specific IgE testing and consideration of venom immunotherapy, and that patients with systemic reactions should carry injectable epinephrine at all times 1
Venom immunotherapy reduces subsequent systemic reaction risk to <5% in appropriate candidates, according to the American Academy of Allergy, Asthma, and Immunology 5