Transdermal ultrasonic antimicrobial treatment and method

1) A device for treatment of bacterial and other infections comprising at least one ultrasonic transducer pair, in which a first transducer of a transducer pair is adapted to produce an ultrasonic signal that is phase-shifted relative to a second ultrasonic signal from a second transducer of said transducer pair, and said first transducer and said second transducer are independently amplified and orientated with respect to each other to provide a convergence of emitted ultrasonic signals from the transducer pair onto an infection site.