Germs

We hear advise that in order to stay healthy and to help prevent communicable diseases we should wash your hands often. I know that this is good advice and that it works. I realize that washing the germs of of one‘s hands prevent them from entering into one’s body. Here are some thoughts: If washing hands with soap of water prevents the common cold, the flu and other diseases, why not analyze what is in the soap and water that removes these germs, then process those ingredients, get them into a pill a liquid or an injectionable form and treat us for all of these diseases????