Received script for 300mg 2x per day for 10 days to treat ear inf...

Received script for 300mg 2x per day for 10 days to treat ear infection and sever chest congestion. At the time the only side effect was sensitive skin & lots of itching, combined with a very mild diarrhea. Here is the crazy thing: now that it has been 30-40 days since I was on the antibiotic, my toe nails have grown out and you can see that it has killed the old nail in front of the new growth. My brother is a physician & he said it is weird, but not out of the question.