Mrs.Lightning is right about zappers boosting immunity, as i used it in 4 days for the first time my WBC count went up from 3800 to 4800 in 10 years time!!
To Mrs.lightning : pls keep up the good work of helping us the new guys on this forum by answering as many questions as possible ,as we can use all the help we can get.and it looks that u are the most experienced one ,at least to me. God bless you.