Tim:
I think that the
facialFacial paralysis
Facial tics
Facial trauma rash is probably eczema, which often appears with no particular provocation. You can treat it with 1% hydrocortisone (over-the-counter.) If that doesn't help in a few days, you should see a doctor. As for the nails, I cannot think of a connection, nor can I explan anything firther without seeing them. Again, a doctor's appointment would seem to be in order.
Best.
Dr. Rockoff