How well do antibiotics work for sinusitis? Antibiotics work in most cases of acute sinusitis that are caused by bacteria. Most people start feeling better 3 to 4 days after they start taking the medicine.
How well do antibiotics work for sinusitis? Antibiotics work in most cases of acute sinusitis that are caused by bacteria. Most people start feeling better 3 to 4 days after they start taking the medicine.