Management of Nail Fold Psoriasis

Introduction to Treatment Options

The American Academy of Dermatology advises that topical vitamin D analogs have limitations in treating nail disease due to poor penetration of the nail plate 1
The American Academy of Dermatology recommends mid to high-potency topical corticosteroid ointments for edema and pain in periungual areas 2

Mid to high-potency topical corticosteroid ointments applied to nail folds twice daily are recommended for edema and pain in periungual areas 2
Topical calcineurin inhibitors (tacrolimus and pimecrolimus) are recommended for nail fold psoriasis as they are well tolerated and do not induce atrophy 3, 1

Combination therapy with calcipotriene and betamethasone dipropionate can be used on the nail plate (not folds) to reduce nail thickness, hyperkeratosis, and onycholysis 1
Tazarotene 0.1% cream can be applied to the nail plate for nail psoriasis, showing significant improvement in the Nail Psoriasis Severity Index when applied under occlusion 1

Warm, moist environments like nail folds increase medication penetration, raising the risk of irritation and atrophy with potent topical medications 3
Daily dilute vinegar soaks to nail folds (10-15 minutes twice daily) can be beneficial for managing periungual inflammation 2
Avoid simultaneous use of salicylic acid with calcipotriene as the acidic pH will inactivate calcipotriene 4

For mild nail fold inflammation, mid-potency topical corticosteroid ointment (not cream) twice daily for 2-4 weeks is recommended, tapering to maintenance of twice weekly application 2, 4
For persistent or moderate nail fold inflammation, topical calcineurin inhibitors (tacrolimus 0.1% ointment) twice daily are recommended 1
For severe or treatment-resistant cases, consider systemic therapy, especially if concurrent psoriatic arthritis or extensive skin involvement exists, and biologics (TNF inhibitors, IL-17 inhibitors) show the highest efficacy for nail psoriasis with concurrent inflammation 1

Failing to differentiate between nail fold inflammation and onychomycosis, which requires antifungal treatment 5
Using high-potency topical steroids for prolonged periods on nail folds, which can lead to skin atrophy 3