Iodine is too reactive to be in nature as an element. Iodine compounds are not common in the ground. There is a mineral called caliche that is found in dry deserts. It has iodate in it. Iodide is found in seawater. Kelp has quite large amounts of iodine in it. Iodine is one of the heaviest elements needed by living things.
Azithromycin is effective for treating sinus infections caused by haemophilus influenzae, moraxella catarrhalis or streptococcus pneumoniae, according to the U.S. National Library of Medicine.
In the setting that your friend is talking about, azithromycin is very commonly used to pneumonia and bronchitis in adults, among other infections. If you have severe cold symptoms, I would recommend that you go to see your primary care doctor for an evaluation.n fact, antibiotics like azithromycin will not help a viral infection get better any quicker at all. Occasionally, however, cold like symptoms can be a sign of a more serious bacterial infection (like pneumonia or bronchitis). Some of these infection may require antibiotics, like azithromycin.