Comparison of a two- or three-week regimen and a review of treatment of erythema migrans with phenoxymethylpenicillin.

Background: A longer duration treatment is preferred in erythema migrans (EM) to prevent late complaints.

Objectives: To determine whether 20 (20d-pt) or 14 days (14d-pt) of phenoxymethylpenicillin (PenV) have similar efficacy in treating EM and preventing further sequelae.

Patients And Methods: In a prospective double-centre study, 102 patients with EM were treated with PenV 1.