I have had chronic sinus infection with chest & head colds for almost 4 months. I have seen 9 doctors and been on many antibotics - nasal sprays - puffers - your rinse. I see my GP tomorrow. Should I ask for a referral to a specialist? What do you recommend? The last antibiotic was Amoxil 1500mg day; rinse 4 times day and nasal spray at night.