Excessive swelling.

Queenie
What can i do about the swelling of my hands legs feet and face? I only drink water & my doctor says its not preclampsia and its to be expected. The swelling is to the point where i can feel it swelling up and theres a horrible burning sensation. Im 36w2d a ftm & my body has been in terrible pain all week. Two L&D visits this week already, and yet i still get sent home....