I had a mild calf tear around a month ago. After it healed, I started using a roller on the calves along with stretching. I do the roller first, and it really seems to help.
I think pf, Achilles, calves, hamstrings are all connected. Stretch all of them. If you search for my calf tear thread, there is discussion about different calf muscles (3 main muscles). Based on what I read, make sure you are stretching the Soleus (with a bent knee).
I had pf once 30 years ago ... sucked. I would wake up and roll my arch over a tennis ball. I got podiatrist shot in the arch (once ... never again ... omg hurt). I also paid $700+ for 3/4 custom orthodics that I only wore a couple of times ... hated them. I cured my pf in weeks by just buying a cheaper, more flexible soled shoe. This was back when they were making super hard soles to last forever. They did ... feet not so much.
I have been having a little back of heel (Achilles area) soreness lately. First time in 20+ years ... my Sof Sole Airr Orthodic insole fixed it years ago, and I have bought them ever since. I remember reading raising the heel slightly reduces the flex/strain on the Achiiles ... so I just cut out heel pads from the origional cheap thin NB insole. I slid them under the Sof Soles, and will try them in singles tomorrow. I would think reducing Achiiles strain would also help pf ... but not sure on that one.
Feet are just suppose to work ... heal quick.