There is provided a cover panel including a lighting device which is attachable without a mounting seat. In the subject methods an effective amount of a topical formulation of the dermatological agent is topically applied to a host. The invention also relates to a method for preventing or curing Type I or Type II diabetes, a method for obtaining a less severe disease stage in a subject suffering from Type II diabetes as well as methods of delaying the progression of impaired glucose tolerance or non-insulin requiring Type II diabetes to insulin requiring Type II diabetes.