I am taking azithromycin (as z-pack) for a sinus infection; finished course this morning and I am improved but still congested. Will it keep working?

Long half life . Zithromax is a unique medicine that is taken for a shorter duration but continues to work for many days after taking the last pill. If one's symptoms continue to improve, no problem. If one's symptoms worsen after the last pill, time to see your doctor again.
No. Although Azithromycin is the most commonly used antibiotic prescribed in the us by general physicians, it is rarely recommended by ENT physicians. It has no effect against nthi (non-typable haemophilus influenzae), a very common bacterial cause of acute otitis media and acute sinusitis. 98% of acute sinusitis is viral. Is the diagnosis correct? Could you just have a viral infection?
Yes. If you are improving, the medicine stays in your system at a therapeutic level for a few days. However although it stays in longer, the level is not therapeutic. Do not forget to keep hydrated and use nasal saline.
Yes. Z pac stars working after you finsh the pills- for the next five days. But z-pac is a over used drug , resistance is about25-40 %. If you are not a smoker and chronic respiratory/ dm , do not work in medical facility; it will work.

Related Questions

Just finished azithromycin for sinus infection 2 days ago. I was better for a few days, but now I am very stuffed up/congested again. What now?

Viral Cause? If you have already been started on antibiotics, and are not receiving any benefit, you may have a virus. Try tylenol (acetaminophen) and Ibuprofen for aches and pains, salt water gargles for sore throat, honey as a good cough medication, and a decongestant like Pseudoephedrine to improve symptoms. Read more...