Oh my, oh my, I know the pain of plantar fascitis too!!
Thank goodness its gone now but when it was at it's worst I remember actually having to crawl on my hands and knees to get to the bathroom because it hurt too bad, in both heels mind you, that I simply could not walk!
There are a few things that helped me get over this.
First, I began to wear very supportive shoes all the time. I bought some New Balance shoes and only took them off at bedtime. This helped support my arches.
Second, I learned the power of stretching. I learned that I needed to stretch my feet before getting out of bed every morning, otherwise, the minute I placed my feet on the floor I was reinjuring my foot. That was a real awakening for me to learn this. So, before I would get up I would bend both of my feet towards my face for 60 seconds and then point them away from me for 30 seconds. I would do this three times before getting out of bed. Seemed time consuming but it really made the biggest difference. I still do this but not every morning now that my pain is gone.
Third, before going to bed I would rub the bottoms of my feed on either a bag of frozen peas or a blue ice thing that go in coolers. Only rub for about 30 seconds, stop for about a minute and then rub again for another 30 seconds. I would not rub any more than 3 times. I learned that this helps with the inflammation and begins the healing process during sleep... stretching in the morning before getting out of bed continues to help with the healing... and wearing very supportive shoes ALL the time magnifies the benefit of healing time.
Fourth, I took ibuprofen (Motrin) twice a day to help with pain and inflammation.
Once I began the stretching, ice, ibuprofen, New Balance business together I was nearly back to normal after about a month. I found that if I stopped wearing the good shoes for a day or so, the fascitis would return so I ended up wearing the good shoes for a full year. I gave up my pretty shoes for all that time. Now I can wear heels and flats again. By the way, I learned that flat shoes which have no arch support are often the culprit of plantar fascitis. It is because no arch support can cause the ligament between your heel and the front of the foot to become overstretched and this is what causes the inflammation and pain where the ligament inserts into the heel area.
If you have to sit in 3 hour classes I would suggest doing some stretching before you get up from your seat too. I wish you all the luck in the world because I know how absolutely awful it can be to suffer from this pain.
