They did a throat culture for strep at the er today but came back negative i have white blisters on back throat a red dots on roof of my mouth.?

Blisters: One consideration is herpangina, like hand foot mouth disease. This viral illness can be quite tender, and resolves without treatment. A physician would also inquire about sick contacts, fever, fatigue, runny nose or other exposures. More severe disease cannot be excluded without further details.

Sore throat: Those findings could also occur with a viral illness.

Virus: A negative throat culture means you have a viral illness that will run its course.Thraot spray or tylenol (acetaminophen) for comfort is ok, but antibiotics will not help.