In iridology the head area correlates to the transverse colon.
Maybe take some purgatives or laxative foods (such as fiber, prunes, raw spinach etc). Smooth Move tea is good for a short while. Look into Oxypowder .
Memory issues can be related to Lyme's Disease too.
The general thinking is some form of toxicity or congestion of the blood.
Lot's of avenues to take, options, and ways to look at this. (smile)