You need to ensure that your garments aren't put in the dryer, as this may ruin the elasticity and make them shrink. Compression garments are best air dried, without excessive exposure to the sun. A person who has lymphedema is not advised to go in the sun for a long time, as the heat may lead to dilation of the blood vessels, which may lead to more blood reaching the extremities, thus, causing an increase in the swelling.