Podocon-25 - How long do I wait in between applications?

This is take directly from the product leaflet:
http://www.paddocklabs.com/html/products/pdf/Podocon-25.pdf

Expand this post...

DOSAGE AND ADMINISTRATION:
PODOCON-25®
IS TO BE APPLIED
ONLY BY A PHYSICIAN. IT IS NOT
TO BE DISPENSED TO THE PATIENT.
SHAKE WELL. Thoroughly cleanse affected area. Use supplied applicator
to apply Podocon-25®
sparingly to lesion. Avoid contact with healthy tissue.
Allow to dry thoroughly. Only intact (no
bleeding) lesions should be treated. As
podophyllin is a powerful caustic and
severe irritant, it is recommended the
first application of Podocon-25®
be left
in contact for only a short time (30-40
minutes) to determine patient’s sensitivity. To avoid systemic absorption,
time of contact should be minimum
time necessary to produce the desired
result (1 to 4 hours, depending on
condition of lesion and of patient), the
physician developing his/her own experience and technique. Large areas or
numerous warts should not be treated
at once.
After treatment time has elapsed, remove dried Podocon-25®
thoroughly
with alcohol or soap and water