I have a chronic sinusitis in 3 areas + acute sinusitis with pus and my ENT doctor prescribed Clavulin 875mg twice a day for 10 days. The first 9 days, nothing special, except I felt I was breathing better through my nose, but the last day, I had an acute reaction, similar to my second viral infection : severe nausea with weakness and dizziness. It last about 10 hours, at variable degrees. It’s been about 10-12 days since that event and I feel my ME is milder now. Is this something that will last ? If not, should I stay on Clavulin longer, if someone wants to prescribe it to me ? Any similar experience welcome !