Sinusitis
"I was prescribed 500mg of Clarithromycin for a week for severe sinusitis and a very sore throat. I&#039;d had the sore throat for a week and it was getting worse. It started to clear up after a couple of days of taking these. Haven&#039;t noticed much effect for the sinusitis but haven&#039;t had any side effects except for really weird and vivid dreams. I woke up rather upset this morning! So they worked for me (especially as I am horribly allergic to amoxycillin) but I&#039;ll be glad when the horrible dreams go back to normal!"