Management of Spider Bites Causing Neuropathic Pain and Lymphadenopathy

Clinical Presentation and Mechanism

• Brown recluse spider bites can cause painful ulcerated wounds that progress over days to weeks and can be associated with hemolysis and rhabdomyolysis, according to the American Heart Association 1

When to Seek Immediate Medical Care

• The American College of Cardiology recommends seeking medical care urgently if pain extends beyond the bite site, which is a common occurrence in brown recluse spider bites 1, 2, 3
• Medical care should be sought if pain becomes severe and is not controlled by over-the-counter medications, as advised by the American College of Cardiology 2
• Systemic symptoms such as difficulty breathing, muscle rigidity, dizziness, or confusion warrant immediate medical attention, according to the American College of Cardiology 4

Initial Management Approach

Immediate First Aid

• The American College of Cardiology recommends thoroughly irrigating the wound with copious amounts of warm water until no foreign matter remains 5, 3
• Applying antibiotic ointment and covering with a clean occlusive dressing is advised by the American College of Cardiology 5, 3

Pain Management

• Over-the-counter acetaminophen and NSAIDs are first-line for pain control, as recommended by the American College of Cardiology 5, 3

Monitoring and Follow-up

• Follow-up within 24 hours is essential to monitor for progression of necrosis or systemic symptoms, according to the American College of Cardiology 5
• Monitoring for signs of necrotic arachnidism developing over days to weeks is crucial, as advised by the American Heart Association 1, 6
• Systemic complications including hemolysis, rhabdomyolysis, and renal failure should be monitored closely, according to the American Heart Association 1, 7