Abstract: A method of reducing or inhibiting the contraction or communication of viral upper respiratory illnesses is proposed. Application of a virucidal preparation containing one or more organic acids (e.g. malic acid) with one or more surfactants (e.g. sodium C14-C16 olefin sulfonate) in a carrier agent (e.g. propanediol) to the nasal cavity of well individuals will reduce the chance that they contract a viral upper respiratory illnesses including coronavirus and influenza. Application of said preparation to the nasal cavity of individuals with a VURI will reduce the chance they transmit the illness by reducing self-contamination of their hands when touching their nose. The preparation is most effective when applied with a clean finger or applicator two or three times daily.

Abstract: A novel method of preventing or inhibiting the contraction or communication of viruses which cause the common cold is proposed. Application of a virucidal ointment containing one or more organic acids (e.g. malic acid) with or without a surfactant (e.g. sodium C.sub.14-C.sub.16 olefin sulfonate) in a carrier agent (e.g. petrolatum) to the nares of well individuals will reduce the chance that they contract illness with the viruses which cause colds. Application of said ointment to the nares of individuals with a cold will reduce the chance they transmit the illness by reducing self-contamination of their hands when touching their nose. The ointment is most effective when applied with a clean applicator multiple times daily.