I don't know if the plaq will stop the ringing; I'm taking it and as I type this, I can still hear the universe as I called it when it was a kid. The ringing is a single tone that just continues. Where you wearing sunglasses in the store? That helps ward off headaches from the lighting. We lupies are in trouble as the lighting industry has started to completely convert to thr energy saving flourescents. I spend more time in my room as my son in law buys them.
It must be hard for you living in AZ; I get heat stoke just driving through that area in the summer.