Alternative, complementary and holistic health care

I’ve been using it, at 3% – from the drugstore – in my ears – to reduce
the buildup of earwax.  I got this home remedy from _The Doctor’s Book
of Home Remedies_, by The Editors of Prevention Magazine Health Books.
It says to perform this treatment once per month, otherwise, you’d be
reducing the positive effects of earwax, in protecting your body.  I
became interested in this treatment, as for the past two years, I have
had to go into the doctor to have him remove large accumulations of
earwax, that have made me practically deaf (only in one ear at a time,
thank God).  
     So, once per month, I put H202 in my ears, and let it sit there
for ten minutes, during one session.  (done 2 or 3 times to each ear)
Question:  Could this be
 too much in one sitting?  Another concern that I had:  Could
 a 3% concentration be too strong, or could it not be strong enough?
     Also, RE: oxygen therapy, I thought that this had to do with
breathing pure oxygen, as a supplement , since our air is so
polluted.  Would this be a part of oxygen therapy?  Thanks for any info
that you can provide.