What is the recommended management for a honey bee sting?

Management of Honey Bee Stings

Remove the stinger immediately by any method—scraping or pinching—because speed of removal matters far more than technique, then treat based on reaction severity: local reactions need only cold compresses and antihistamines, while systemic reactions require immediate intramuscular epinephrine. 1, 2

Immediate Stinger Removal

• Remove the stinger as quickly as possible (within seconds) because venom continues to be injected for up to 60 seconds after the sting 1, 2
• Pinching and pulling the stinger out is equally effective as scraping—there is no disadvantage to pinching, contrary to traditional advice 1, 2
• The critical factor is speed of removal, not the method used 2

Treatment Based on Reaction Type

Simple Local Reactions (Most Common)

Most bee stings cause only localized redness, swelling, itching, and pain that resolve within 24 hours 3:

• Apply cold compresses to reduce pain and swelling 3, 4, 5
• Administer oral antihistamines (cetirizine preferred for fastest onset) to alleviate itching 4, 6
• Use oral analgesics (acetaminophen or NSAIDs) for pain relief 6, 5
• Do NOT prescribe antibiotics—the swelling is allergic inflammation, not infection 4, 5

Large Local Reactions

These reactions involve swelling >10 cm in diameter, increase in size for 24-48 hours, and take 5-10 days to resolve 3:

• Continue cold compresses and oral antihistamines 4, 6
• Consider a short course of oral corticosteroids (e.g., prednisolone 50 mg daily for 3 days in adults) if started within the first 24-48 hours for severe cases 3, 6, 5
• Topical corticosteroids may be applied directly to the sting site for local inflammation 5
• Antibiotics are indicated only if clear secondary bacterial infection develops 3
• Up to 10% of patients with large local reactions may later develop systemic reactions 6

Systemic Anaphylactic Reactions

Systemic reactions include urticaria, angioedema, bronchospasm, upper airway obstruction, hypotension, shock, gastrointestinal symptoms, or neurological signs not contiguous with the sting site 3:

• Administer intramuscular epinephrine immediately as first-line therapy: 0.3-0.5 mg in adults, 0.01 mg/kg (maximum 0.3 mg) in children 3, 4, 6
• Inject into the anterolateral thigh for faster and higher plasma concentrations compared to subcutaneous or arm injection 4, 6
• Repeat epinephrine dosing may be required for persistent or recurrent symptoms 3, 4
• There is no contraindication to epinephrine in life-threatening anaphylaxis, even in patients with hypertension, cardiac arrhythmias, or those taking β-blockers 3, 4
• Fatal sting reactions are associated with delayed epinephrine administration—antihistamines and corticosteroids are NOT substitutes for epinephrine 3, 6
• Provide supportive therapy and transport to an emergency department 3

Post-Acute Management for Systemic Reactions

Epinephrine Auto-Injector Prescription

• Prescribe an epinephrine auto-injector (300 µg for adults, 150 µg for children 15-30 kg) for all patients who have experienced a systemic reaction 3, 4, 6
• Consider prescribing more than one auto-injector because some patients require multiple doses 3
• Provide structured training on proper technique and indications for self-administration 3, 4
• Patients should carry the auto-injector at all times 3

Allergy Referral and Testing

• Refer all patients with systemic reactions to an allergist-immunologist for venom-specific IgE testing (skin testing preferred initially) and evaluation for venom immunotherapy (VIT) 3, 4, 6
• If skin tests are negative after a severe reaction, perform in vitro IgE testing or repeat skin testing at least 6 weeks after the sting 3, 4
• Consider baseline serum tryptase measurement in patients with severe reactions, as 3-5% have underlying mastocytosis 3, 7

Venom Immunotherapy (VIT)

VIT is recommended for adults with any systemic reaction beyond isolated cutaneous signs and for children with respiratory or cardiovascular systemic symptoms 3, 4:

• VIT reduces the risk of subsequent systemic reactions to <5%, compared to 25-70% without treatment 3, 4
• Recommended duration is 3-5 years; 80-90% of patients remain free of systemic reactions after discontinuation 3, 4
• Extended or indefinite VIT is advised for patients with a history of severe anaphylaxis featuring shock or loss of consciousness 3, 4
• VIT may be considered for adults with only cutaneous systemic manifestations, though this remains somewhat controversial 3, 4

Insect Avoidance Education

Provide all at-risk patients with avoidance strategies 3, 4:

• Have nests removed by trained professionals from the home environment 3, 4
• Avoid brightly colored clothing, flowery prints, and strongly scented materials 3, 4
• Wear long pants, long-sleeved shirts, socks, closed shoes, and work gloves outdoors 3, 4
• Do not walk barefoot or in open footwear 3, 4
• Exercise caution near bushes, eaves, attics, garbage containers, and picnic areas 3, 4
• Keep insecticides available for killing stinging insects from a distance 3, 4
• Recommend a medical identification bracelet or necklace indicating insect sting allergy 3, 4

Special Medication Considerations

• β-adrenergic blocking agents increase the risk of severe anaphylaxis; discontinue when feasible 4
• ACE inhibitors are associated with higher risk of severe anaphylaxis (odds ratio ≈2.27); consider alternative antihypertensives when appropriate 3, 4
• If these medications cannot be stopped, the benefit of VIT generally outweighs medication-related risk in patients with life-threatening sting reactions 4

Critical Pitfalls to Avoid

• Do NOT delay stinger removal to find the "correct" technique—immediate removal by any method is what matters 1, 2
• Do NOT use antihistamines or corticosteroids as substitutes for epinephrine in anaphylaxis 3, 6
• Do NOT prescribe antibiotics for simple swelling—it is allergic inflammation, not infection 4, 6, 5
• Do NOT withhold epinephrine in patients on β-blockers or with cardiac disease during anaphylaxis—the risk of untreated anaphylaxis far exceeds any cardiac risk 3, 4