Yes, there is another way (to avoid destruction of wax and woodenware);
but, it is definitely not a do it yourself type thing.  North Carolina and
Maryland both offer through their respective state apiary services a
treatment for woodenware and drawn comb resulting in the saving of many
commercial and hobbyist hives.  Treatment is in a special sealed chamber
first brought under a vaccum and then pressurized with ethylene oxide,ETO.
Samples of scale are cultured pre-treatment and post-treatment to determine
the viability of the scale and success of treatment.

Chuck Norton
Reidsville, NC