I have used enemas for well over sixty years and found, if I don't clean myself out with two or three good enemas at the onset of a cold or the flu, they will last longer and be more severe. When my ex wife and I got married, she only used enemas for constipation relief or cramps during and just after her period. After we were married, she discovered the sexually aspects of enemas and we used them, from time-to-time, before, during, or after sexually foreplay. After a couple of years she realized, she hadn't gotten a cold or the flu during our marriage and said something to my sister about it. My sister said, "do you remember when we roomed together and you started coming down with the flu". My wife said, "sure do, you gave me a couple of enemas, when I said something to you about it, and if I remember correctly, an enema each evening until I was over it." My sister replied, "correct, you took my advise and ask my brother about our after school activities as teens and what you guys should try after getting married, didn't you?" My wife replied, "yes, how did you know?" "Your not getting colds or the flu as often, because your doing more enemas, more regularly, using them sexually, than before you were married", replied my sister.
I don't begin to understand what's going on, be it physically or mentally, all I know, it works for me, it works for my sister, and it worked for my ex wife and our kids. My grandmother was an RN from the 20's and 30's and she swore by the use of enemas at the onset and during, a cold or the flu, till the patient was over the illness.