>- almost using it 24/7 but my mom developed same symptoms and she would zap 20 minutes a day
Neither method was a good choice IMHO.
Zapping at a minimum should be 7 minutes on (minimum), 20 minutes off,
repeat 3 times minimum
. 7-20-7-20-7
Zapping 24 hours a day is bad unless you are trying to get rid of some very bad virus. A good zapper kills the normal intestinal flora which must be replenished. However, zapping 24 hours a day will not let it recover which can create worse problems. There are many other important do's and don'ts. Read " parasite Zapping and the Zapper".