Ask the doctor to increase lasix and also in a boots are effective for 8 hours and needs to be re applied they can stay on for up to 7 days, just learned of that at a wound confrence. Wild on wounds. There are different kinds of unna boots out there.Also unna boots should be used in ambulatory patient the calf muscle pump is working when your ambulatory and active and has about 20-30 mmHg of compression,im effective for wc and bed ridden patients. Ted hose should be used in bed. Teds are for Beds, dvt immobile patient's and comoression stockings are for ambulatory patient's . Comoression stockings range from 15 to 60 mmHg of pressure requiring a prescription for anything above 20mmhg. Comoression and Ted hose are different and used for different types of compression.