My 31-year-old Son, Normally Quite Healthy, Displays The Following Symptoms:

My 31-year-old son, normally quite healthy, displays the following symptoms: Fatigue; headache/"pressure" in head; slight fever; blisters or bumps on hands, feet, and lower face around the mouth; rash or similar bumps on posterior. He works in a restaurant as a waiter. He went to work FRI morning feeling great, and at 10 p.m. the same day, he had the first three symptoms. He was too ill to work SAT, and the rash/bumps developed today, SUN.
Thank you, Doctor.