Cough Remedy... Pinner said: My son's doctor told me about this 37 years ago. Use Vicks Vapor Rub and socks. Even the worst cough can be stopped within 5-15 minutes, and lasts hours. Just apply the vapor rub generously to the bottom of your (or child's) feet, and cover with socks. works 100% of the time, and has been proven to work better than prescription drugs!