Psoriasis is a life-long affliction which comes and goes where the skin becomes reddened and scaly in patches. It can alos be associated with arthritis.
||At the outer end of the crease formed when the elbow is partially flexed.|
||Three thumb widths below the kneecap and on the outer side of the leg one thumb width from the outstanding angle of the leg bone.|
||Three thumb widths above the inner ankle bone on the very back edge of the bone.|
||Two thumb widths above the top inside corner of the kneecap.|
||One and a half thumb widths up the forearm from the wrist crease on the thumb side of the arm on the edge of the bone (side of arm).|
||On the inside of the forearm five thumb widths from the crease at the elbow and 7 thumb widths from the wrist crease on the thumb side edge of the bone (radius).|
||In the crease at the elbow on the palm side of the arm, and on the outside of the tendon, felt when the arm is slightly flexed.|