clownfish changing sex

[Starry]

I had to pull my female black and white clown today in order to hospitalize her for what I am thinking is velvet. Its mainly on her....face? and eyes so shes having trouble seeing. (shes the only one with symptoms, go figure.)

My question is will the smaller male change to a female in the 3-4 weeks I plan on isolating the female? Im hoping when I reintroduce them there wont b any problems.