The OTC Handbook: Allergy, Cough, Cold Medicine Advice Book. Medication Guide for symptoms related to Flu, GI, Skin & MORE!EbookThe OTC Handbook: Allergy, Cough, Cold Medicine Advice Book. Medication Guide for symptoms related to Flu, GI, Skin & MORE!byAaron HermannRating: 0 out of 5 stars0 ratingsSave The OTC Handbook: Allergy, Cough, Cold Medicine Advice Book. Medication Guide for symptoms related to Flu, GI, Skin & MORE! for later