I've had a few flushes that caused my sinuses to work overtime for a few days. I chalked it up to another healing crisis and rode it out.
After 10+ flushes, I've gone from *requiring* OTC sinus meds to breath during pollen season to being able to be covered with the yellow stuff with no problem. (Actually sat out on my back deck for an hour or so the other day and noticed my white shirt was yellow - and not one sniffle or sneeze!)
The Epsom Salts play with my stools as well. They tend to normalize after just a couple of days. Have you done any bowel cleansing?