foot swelling relief

Hey moms! 
Since turning 36 weeks, I have dealt with some SERIOUS feet and ankle swelling. I've been fighting elevated blood pressure this whole pregnancy and had to stop taking baby aspirin which is when the swelling started. I've tried soaking in bathes with Epsom salts and elevating my feet. I work in retail, 8 hour days on my feet. I haven't been able to find relief. Has anyone found anything that works well besides soaking, elevating my feet, and taking breaks from standing (which is not an option for me at work)? I'd appreciate any advice our help. This is miserable.