Common cold is mostly caused by Rhinoviruses. Which of the following treatments will provide the best cure from this infectious agent?

• A

  A glass of Oral Rehydration Suspension (ORS) plus two tablets of streptomycin twice a day for three days.
• B

  Two tablets of amoxycillin twice a day for at least three days.
• C

  One tablet of amoxycillin plus one tablet of a pain killer four times a day for at least three days.
• Correct answer
  D

  Adequate rest and a balanced diet for at least three days.

Hence, the correct answer is option: 'D'.