For dry skin and under-eye wrinkles, use a fragrance-free, hypoallergenic moisturiser containing ceramides and hyaluronic acid (such as Vanicream or CeraVe). For itchy eyes, use preservative-free lubricating eye drops. For your scalp psoriasis, use a fragrance-free salicylic acid shampoo (like Neutrogena T/Sal) to gently clear scales. Since you have severe allergies, consult a dermatologist for a prescription fragrance-free topical steroid solution (like clobetasol) to target scalp inflammation safely. Always patch-test new products on your inner arm for 48 hours before applying them to your face or scalp.