The outside corner of my eyelid is sore to the touch and is hurts when I blink. It is not swollen, there is no visible sty, and eye is not red.?

Corner of eye pain. May be developing infection or developing Zoster ( herpes-shingles)-the rash takes several days to come out . Consider lysine 500 mg 3 tabs a day x 5 and also f/u with urgent care/ doc.