I am thankful that my dr went out on a limb and thought about rsd. I had never heard of it and was questioning him. My foot has continued to get worse

I started PT last week. She saw my foot and immediately said it was definitely CRPS (she said RSD was the old term ) and that we were going to "beat it". She has personally treated 3 cases that were in the beginning stages like mine and she has not had them come back because of remission.

We are attacking it pretty fast and doing all types of therapy. My color is getting better overall, but I still have purple and red occassionally. Today it swelled up again and I'm feeling the zing along with pain that is worse than it has been in about 2 weeks.

Is this normal? Will it get worse before better even if it was caught early?

I have a follow up with the ortho surgeon (dr that dx) next week so I'm hoping for more answers then, but figured experienced people could answer better.