1 doctor agreed: Butrans patch: This is designed to stay on for 7 days. If its falling off then you can use tape to keep it on. It would make no sense to keep it on longer than 7 days - the design provide for steady drug for 7 days only - therafter it may not deliver the same amount. ...Read more.
Flu symptoms will often start quickly. You can start to feel sick about 1 to 7 days after you come in contact with the virus. Most of the time symptoms appear within 2-3 days. The flu spreads easily. It can affect a large group of people in a very short amount of time.
How long after being exposed to a stomach virus does it take before you start having symptoms? It depends on the type of virus you were exposed to, but typically it takes 12 to 72 hours, or up to 3 days, before you start feeling sick.