Evaluation and Treatment of Bilateral Red Itchy Rash on Dorsum of Hands

Initial Management

The American Academy of Dermatology recommends starting with aggressive moisturization and mid-potency topical corticosteroids, such as triamcinolone 0.1% twice daily, while identifying and eliminating potential irritants and allergens through detailed exposure history and patch testing if no improvement occurs within 2 weeks 1, 2
Apply triamcinolone 0.1% twice daily for localized disease, and consider clobetasol 0.05% twice daily for up to 2 weeks for more severe involvement 2
Aggressive moisturization protocol involves applying 2 fingertip units of moisturizer per hand immediately after washing, using fragrance-free products with petrolatum or mineral oil, and reapplying every 3-4 hours and after each hand washing 1, 6

The British Association of Dermatologists suggests determining the type of dermatitis by examining for primary vs. secondary skin lesions and obtaining a focused exposure history 3, 1
Patch testing is recommended if no improvement after 2 weeks of appropriate topical steroid therapy, suspected allergic contact dermatitis based on exposure history, or recurrent or chronic dermatitis despite irritant avoidance 3, 2
Common allergens include nickel, fragrances, cobalt, and rubber additives 3

Consider advanced therapies, such as phototherapy, topical calcineurin inhibitors, or systemic therapies, if no improvement after 6 weeks 1, 2, 3
Systemic corticosteroids, such as prednisone 0.5-1 mg/kg/day, may be used for extensive disease, but should be tapered over a minimum of 2-3 weeks to avoid rebound dermatitis 2, 5

The American College of Dermatology recommends considering drug-induced hand dermatitis, particularly hand-foot syndrome or hand-foot skin reaction, in patients receiving chemotherapy, such as docetaxel, capecitabine, doxorubicin, or tyrosine kinase inhibitors 4, 5, 6
Management of drug-induced hand dermatitis may require dose modification or drug interruption in addition to topical therapy 4