I WAS JUST LOOKING UP THIS MEDICATION BECAUSE MY DAUGHTER

I WAS JUST LOOKING UP THIS MEDICATION BECAUSE MY DAUGHTER HAS BEEN CONGESTED AND HER SINUSES ARE BOTHERING HER AND SHE WENT TO DOCTOR. HE PUT HER ON AN ANTIBIODIC AND NOTHING CHANGED--SO NOW SHE IS ON THIS FOR TEN DAYS. after THIS IF IT DOES NOT DO ANYTHING FOR HER HE SAID HE WILL NEED TO SEE HER BACK AGAIN. sHE EVIDENTALLY HAS SOME KIND OF INFECTION IN HER SYSTEM. sHE IS ON 500MG OF THIS. dOES THIS WORK GOOD? I AM PRAYING THAT SHE CAN GET SOME HELP SO THIS CAN GO AWAY. sHE HAS A COUGH THAT JUST WON'T STOP WHEN SHE LAYS DOWN TO SLEEP. I AM CONCERNED ABOUT HER. sHE IS A GROWN WOMAN NOW AND IS NOT IN MY HOME BUT I JUST LEFT HER HOUSE --SO I WAS LOOKING UP THIS MEDICATION.