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 Subscribe now Benefits include: Full site access Subscriber exclusive content Exclusive bulletins Choose a package