The importance of early diagnosis in Lyme disease A thorough history and recognition of the erythema migrans rash will aid identification. By Dr Sara Ritchie by Dr Sara Ritchie Sign in to continue Sign In Email address Password Stay signed in Trouble signing in? Reset password: Click here Need help? Email us Register FREE Limited free articles a month Free email bulletins Register Now Register Now Take a 30-day trial Join MIMS now and pay nothing for the first 30 days Join GPOnline now and pay nothing for the first 30 days Sign Up Sign Up