Been on 2rounds of zpack. looked at throat 2day has red streaks in the back, no more white spots. sore. no fever. could it be viral?

Viral?: Viral infections are generally self-limited, lasting an average of 3 to 5 days before resolving on their own. Given that you’re on the second round of Z pack, you have been sick presumably for at least five days and probably longer, reducing the chance that this is a simple viral infection. You might need a different choice of antibiotic.