It is better not wear contact lenses when you are suffering from episcleritis. It is the inflammatin of episclera. Generally speaking, there are two kinds of episcleritis, simple episcleritis and nodular episcleritis. Simple episcleritis is the most common type of episcleritis. It is mild and comes quickly goes fast. It will last for about seven day, and can clear up completelly after two to three weeks. The nodular episcleritis is much more painful than the common one and always last longer. With episcleritis, you might have dull ache in eyes, watering eyes, red and bloodshots in the white of eyes and sensitive to light. Episcleritis might develop iritis complication. With such uncomfortable feelings of eyes, I don't think you could wear the contact lenses, which probably make your eyes more painful and a strong foreign body sensation. After your episcleritis clears up, if you need to wear contact lenses, I suggest you not to wear them too long a time per day. According to some resources, it is better not to wear them longer than 6-10hours per day dependinh on the type of contact lenses you wear. Wash contacts with special care solution each time before and after you use them. It is a must to rub them in solution carefully and softly with your fingure tip although near all of the solutions claim that they could deprotein without rubbing. Hope this is helpful to you.