Hello, my father-in- law woke up this morning with these crusty blisters all over his face. And his right eye is almost swollen shut. The best way to describe the sores is the aftermath of a cold sore, when it turns into that brownish/yellowish crust. I have no clue what it is. He s trying to tell me that it s shingles, but I know that shingles are extremely painful. And he s not in pain. Do you have any idea what this could be? And, do you think that it s serious enough to go to the doctor? Thank You, Sanna