Comparison
Mosquito: itchy wheal within minutes, fades in 1-2 days. Single or multiple.
Flea: itchy red bumps, often in clusters of three, lower legs.
Bed bug: linear or clustered itchy welts, exposed skin, often morning onset.
Tick: painless puncture with attached tick; may develop into erythema migrans if Lyme.
Spider (verified): paired punctures, mild local reaction, resolves 1-3 days unless widow/recluse.
MRSA / cellulitis: expanding redness, warmth, often pus; systemic features common.
References
- [1]Spider Myths - Burke Museum, University of Washington. Accessed June 2026.
Related in Reference
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