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.
Azithromycin therefore stops the spread of infection and remaining bacteria are killed by the body's immune system or eventually die. Azithromycin is a broad-spectrum antibiotic, which means it is active against a wide variety of bacteria that cause a wide variety of infections. Azithromycin may be used to treat infections of the upper or lower airways, skin or soft tissue, or ears.