In a message dated 1/24/2013 1:49:33 A.M. Eastern Standard Time,  
a...@aptech.co.za writes:

I would  NOT use a TENS device on my head, nor directly along my spine. On 
the other  hand 
I am quite happy using low voltage (3 to 12v) on my self, as long as  it is 
current controlled, or 
very low voltage (1.5v) if  uncontrolled.  




Hi Tony, I'm not sure what a " TENS " device is. I  have never read up on 
one but now the curiosity bump is itching I will have  to.   I only used the 
little double a battery with the wire I  soldered on each end. I used it  as 
near to the abscess as I could get it inside & outside of my cheek...I  
never felt any current passing through my jaw & have never felt anything  from 
one when I have touched both ends with wet fingers... A 9 volt is different  
I got sparked only once on my tongue when I touched it to see if it was a 
live  one. I learned " NOT"  to do that again very quickly. :-).  Lois