Final answer:
Erythema multiforme is a skin condition characterized by red patches or rashes on the skin. The most likely factor contributing to erythema multiforme is an allergic reaction to certain substances or medications. Common triggers include infections and certain medications.
Step-by-step explanation:
Erythema multiforme is a skin condition characterized by red patches or rashes on the skin. The most likely factor contributing to erythema multiforme is an allergic reaction to certain substances or medications. Common triggers include infections, such as herpes simplex virus or Mycoplasma pneumoniae, as well as certain medications, such as antibiotics or nonsteroidal anti-inflammatory drugs (NSAIDs). In some cases, the exact cause may not be identified.