Had my surgery four days ago. Everything went fine, they patched the dura and I felt great for 3 days. But today I woke up with the familiar ringing in the ears. Don't really know what to do: should I call the surgeon and go back to hospital? Or should I stay in bed? I will see him next week to have the staples out. I am trying to find something to help dura heal. Does caffeine help? What about enzymes? Wobenzym or vitalzym. Did you try them?