If it’s a virus, especially but not limited to respiratory viruses, take the D-3 daily. You won’t have that problem any more. If it is bacterial or allergies then it probably won’t help it.
We take large doses of D-3 everyday and other vitamins. This stuff is so contagious its really hard to avoid. The radio is reporting it as an influenza like virus. So the antibiotics just work on the secondary infections in the throat and ears etc. We are now just taking colloidal silver, C and nasonex for the runny nose.