a cooling device for cooling {HEAD ~ at least a portion} of the scrotal skin of {TAIL ~ the target area} 
a cooling device for cooling { HEAD ~ at least a portion } of the scrotal skin of { TAIL ~ the target area }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL