I Recently Moved And Am Not Yet Established With A

I recently moved and am not yet established with a new doctor. Earlier this year I was prescribed CEPHALEXIN for a bladder infection and in preparation for kidney tripolipsy. Then I was given a new prescription and told to discontinue taking the Cephalexin. I had only taken two capsules. Yesterday I began experiencing the undeniable symptoms of a new bladder or urinary tract infection. I have this full prescription of Cephalexin and have no doctor as of today. I am planning to use this perfectly good prescription AND follow up by getting an appointment with a new physician. What cautions do you suggest? My prescription is take one capsule 4 times per day for 14 days. I am two capsules short.