Management of Psoriasis Flare-Ups

Initial Treatment Algorithm

The American Academy of Dermatology recommends applying clobetasol propionate 0.05% (class 1, ultra-high potency) or betamethasone dipropionate 0.05% (class 2, high potency) twice daily to thick plaques for 2-4 weeks maximum, achieving 58-92% efficacy rates in clearing or near-clearing psoriatic lesions 2
The National Psoriasis Foundation suggests combining topical corticosteroids with calcipotriol (vitamin D analog) for synergistic effect, using either separate products or fixed-combination formulations, as this dual therapy is more effective than either agent alone 1
For scalp involvement, the American Academy of Dermatology recommends using clobetasol propionate 0.05% shampoo twice weekly, leaving on scalp for 5-10 minutes before rinsing, providing rapid symptom relief within 3-4 weeks 3

The American Academy of Dermatology advises using low potency corticosteroids (class 5-7) or topical calcineurin inhibitors (tacrolimus 0.1%, pimecrolimus) on the face, intertriginous areas, genitals, and forearms where skin atrophy risk is highest 1, 2
The National Psoriasis Foundation recommends applying tazarotene (topical retinoid) combined with moderate-to-high potency corticosteroids to reduce irritation while enhancing efficacy for body plaques 1
For thick, non-responding plaques, the American Academy of Dermatology suggests considering intralesional triamcinolone acetonide up to 20 mg/mL every 3-4 weeks on glabrous skin, scalp, nails, palms, and soles 2, 3

The National Psoriasis Foundation recommends transitioning to intermittent use (weekend-only application) or switching to the least potent agent that maintains disease control after achieving control at 2-4 weeks, to minimize adverse effects including skin atrophy, striae, telangiectasia, and HPA axis suppression 1, 2
The American Academy of Dermatology advises tapering frequency gradually after clinical improvement rather than abrupt withdrawal to prevent rebound flare phenomenon 2, 3
The National Psoriasis Foundation suggests using vitamin D analogs on weekdays while applying corticosteroids on weekends only as an effective maintenance regimen 1

The American Academy of Dermatology recommends conducting regular clinical review every 4 weeks during active treatment with no unsupervised repeat prescriptions for high potency agents 4, 1, 2, 3
The National Psoriasis Foundation advises limiting moderate potency corticosteroid use to maximum 100g per month and requiring dermatological supervision for class 1-2 (very potent/potent) preparations 4, 1, 2
The American Academy of Dermatology recommends planning annual periods employing alternative non-corticosteroid treatments to prevent continuous high potency steroid exposure 4, 1, 2

The British Medical Journal suggests using lower concentrations of tar and dithranol for acute guttate psoriasis, as erupting lesions are commonly less tolerant of topical treatment 4
The British Medical Journal recommends considering ultraviolet B phototherapy as especially helpful for guttate presentations 4
The British Medical Journal advises investigating and treating streptococcal infection with phenoxymethylpenicillin or erythromycin in patients with acute guttate psoriasis showing evidence of persistent streptococcal infection 4

The National Psoriasis Foundation recommends referring to dermatology for systemic therapy (methotrexate, acitretin, cyclosporine, or biologics) when body surface area involvement exceeds 5%, inadequate response to optimized topical therapy after 8 weeks, scalp tenderness persists despite adequate anti-inflammatory treatment, or signs of erythrodermic or pustular psoriasis develop 1, 3
The British Medical Journal advises that for moderate-to-severe psoriasis requiring systemic agents, dermatological supervision is mandatory due to potential toxicity of these medications 4