Eello Doctor, I Have Been ReCently Being Diagnosed With Asthma

Eello doctor, I have been reCently being diagnosed with asthma and put on a symbicort turbohaler and due to a chest infection am taking clarithromycin past 6 days I am experiencing dizziness and looked to Information sheet which says not to take this antibiotic as there are major contraindications! Is this the case? Geraldine