For anyone with a bad hair odor....  I recently tried a home conditioning remedy for dry hair that included whipped eggs.  I whipped the ENTIRE egg, not just the protein white part, and then put the mixture of egg and mayonaise on my hair with a shower cap.  I then sat in the sun to heat activate the conditioning.  I am not sure exactly what caused the rotten smell.  I left the mixture on until my hair was completely dry and then tried to rinse/shampoo it out.  NOTHING was working.  I finally went to a salon expecting to pay a lot to professionally get rid of the smell.  Instead I was told to go to WalMart and buy SeaBreeze facial toner.  I used that, left it on about 5 minutes and it worked like a charm.  The first time.