Honestly I haven't read about GD manifesting on the hands. I have 3 forms of eczema, GD is one yet my first form was Allergic Contact Dermatitis, ACD. The rash was on my hands, between fingers and on my palms. Crazy itching! Steroids did help me temporarily with this form, they are a treatment not a cure. Avoidance to allergens is key. It can happen at any age, but often it occurs in middle age like it did for me. ACD is caused by allergic contacts: fibers, preservatives, adhesives, metals and so on. Everyday chemicals and natural ingredients in clothing, dish soap, bedding, laundry soaps, make up, hand lotions, shoes, anything you have contact with. The 5 Day Extended Patch Test identifies your allergens, Google this test if you haven't already had it. The True Test is a common test kit ordered by specially licensed derms and allergists, not all derms are licensed to administer these test kits. It take 5 full days at a cost of $1,500 but is covered by most insurance and Medicare. It's not unusual to have several forms of eczema which have different causes and treatments. Go to dermnetnz.org and search for ACD and look at the mass of photos they have of your rash areas, you may find one that looks exactly like yours. While you are at it look at the GD rash sites, different types of eczema often have different rash characteristics and locations and I'd be surprised to see any GD hand rashes. For you I wondered about sailing if nylon ropes are used as I am allergic to nylon and also varnishes if you have a wooden tiller. For me toxic Dawn dish soap and using protective gloves with elements of rubber triggered my hand eczema ACD. Preservatives in hand lotions triggered me. Even the memory foam pillow and mattress I had were toxic. My body handled these elements for years but finally overreacted and tried to remove them from my body and thus my histamine army was raised, and this raised my inflammation levels all over my body.