Sounds like you got problems in your tank. Why don't you give more info about what is going on. How you introduced ich in to your tank...now all fish that have been exposed, are now effected, btw. What are your water readings, including nitrate and phosphate.
All the fish should be treated with hyposalinity. If this does not resolve the wrasses slime problem in short order, than you can additioanlly treat with a course of antibiotics--Maracyn Two for SW fish.