Zinc for colds: not much benefit...but there is a way to prevent flu.
D000280:Administration, Inhalation; D002214:Capsules; D002648:Child; D003139:Common Cold / Q000188:drug therapy*; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage; D007251:Influenza, Human / Q000517:prevention & control*; D017967:Zinc Compounds / Q000627:therapeutic use*
D002214:Capsules; D007252:Influenza Vaccines; D017967:Zinc Compounds