HELP - Fish Illness

[TheReefGeek]

Does anyone know what this might be on my foxface? Some sort of parasite? This is not my area of expertise, I have been fortunate not to have any disease outbreaks, maybe until now!

He is a new addition to my tank about 2 weeks ago, I think he had some blemishes when I got him, but they are way worse all of a sudden.

The foxface is swimming, breathing, and eating normally. The pictured side is the worst, the other side has 1 spot.