On fundus exam, one sees flat, multifocal, grey-white lesions (100-200 micrometers), appearing to reach as deep as the RPE. Typically lesions are found outside the fovea in the posterior pole. A characteristic finding in MEWDS is an orange-yellow fovea with granularity.
One example of a moist heat therapy method that can work for your full body would be using a steam room. You could also use a hot tub as a way to treat your whole body. Not only can you find enjoyment and relaxation in using either of these options but they can help treat pain in all parts of your body.
In the most common case, a gas stream, e.g., air, applies the heat by convection and carries away the vapor as humidity. Other possibilities are vacuum drying, where heat is supplied by conduction or radiation (or microwaves), while the vapor thus produced is removed by the vacuum system.