Accurate diagnosis of the infecting organism is essential.
Identification should be made either by direct microscopic examination
of a mounting of infected tissue in a solution of potassium hydroxide,
or by culture on an appropriate medium. Spray affected areas from a
distance of 2 to 4 inches to apply a light covering, once daily for 2
to 4 weeks. Medication must be continued until the infecting organism
is completely eradicated as indicated by appropriate clinical or
laboratory examination. If no improvement is noticed within 2 weeks,
diagnosis should be re-evaluated. Difficult cases may require treatment
for 6 weeks. General measures in regard to hygiene should be observed
to control sources of infection or reinfection. Clipping of hair around
and over the sites of infection should be done at the start of
treatment and again as necessary.
