Sorry guy!  I was on doxy for 3and 1/2 years and was not cured.  Even if the infection is correctly diagnosed and treated immediately some will get better after 21 days but most won't.  Every case is unique.  Ticks can carry up to 50-60 different pathogenic diseases.  Some respond to Doxy and some do not.  It depends which ones your tick had how to treat Lyme.  we call it one disease but in reality it is a unique cocktail of diseases.  I've contracted Lyme more than once and had Doxy for 60 days right away and not had it work.  Right away is not right away since getting to a doc who will actually prescribe takes weeks.    Even this Breakthrough will help some and not others.  If you have one of the diseases that shows up in the Senovial Fluid then you will be helped b this if its allowed to be pursued and develops new tests and treatments.  I am assuming that not all the disease you can get form ticks shows up in Senovial Fluid or by the faulty tests currently used.