Rash, (red, weeping, gold crusting) and swelling, itchy. Develops on scalp and eyelids and around eyes and in arms. Worsens with exposure to sun.?

Get evaluated. This rash could represent a seborrheic dermatitis or it may be an infection. I would recommend that you have it evaluated by a dermatologist or your physician.
Its the gold color. that concerns me as possible superinfection of skin with staph. It sounds like a contact dermatitis, so see your dermatologist for diagnosis and treatment. There is a condition called photodermatitis which is a skin reaction to the sun.