Which of the following is a treatment option for oral lesions in erythema multiforme?

Lidocaine and diphenhydramine mouthwash is an effective treatment option for oral lesions in erythema multiforme due to its ability to provide symptomatic relief. This combination works as a local anesthetic (lidocaine) to numb the pain associated with the lesions and as an antihistamine (diphenhydramine) to minimize irritation and discomfort. Since erythema multiforme can cause painful oral lesions, this mouthwash is particularly useful in helping patients manage their symptoms and maintain better oral hygiene during healing.

Other treatments for erythema multiforme may focus on systemic inflammation or infection control, but when addressing the specific symptoms related to oral lesions, the mouthwash option offers targeted pain relief and comfort. This is why it is the preferred approach in managing oral manifestations associated with this condition.