Dandruff Treatment in Thiruvalla
Expert Scalp Care & Seborrheic Dermatitis Solutions

DermaVue Clinical Summary — Seborrheic Dermatitis

Seborrheic dermatitis is a chronic relapsing inflammatory dermatosis of sebaceous-rich areas driven by an abnormal host response to commensal lipophilic yeasts of the genus Malassezia. Historical texts attributed the condition to Malassezia furfur, but modern molecular speciation has identified Malassezia globosa and Malassezia restricta as the dominant species on affected scalps — a speciation update reflected in the current IADVL and European S3 dandruff guidelines (Gaitanis et al., Clinical Microbiology Reviews 2012). These lipid-dependent yeasts hydrolyse sebum triglycerides to produce irritant free fatty acids and lipoperoxides, triggering the scaling, erythema and pruritus seen clinically.

Clinical presentations at DermaVue Thiruvalla span simple pityriasis capitis (non-inflammatory scalp flaking), classic scalp seborrheic dermatitis with erythema and greasy yellow scale, facial seborrheic dermatitis involving eyebrows, nasolabial folds, and retroauricular areas, infantile seborrheic dermatitis (cradle cap), and Malassezia folliculitis of the trunk (often misdiagnosed as acne). Important associations include Parkinson's disease, HIV infection (where disease is unusually severe and extensive), and immunosuppression — conditions screened for when clinically indicated. Differential diagnosis is critical: scalp psoriasis, tinea capitis, contact dermatitis, and atopic dermatitis can all mimic seborrheic dermatitis and have entirely different treatments.

First-line treatment follows the AAD and IADVL consensus (Naldi & Rebora, NEJM 2009; Dall'Oglio et al., JEADV 2022): ketoconazole 2% shampoo or ciclopirox olamine 1% shampoo used 2–3 times weekly with a minimum 3–5 minute scalp contact time before rinsing — compliance with contact time is the most common reason for "shampoo failure". Adjunctive options include zinc pyrithione 1–2% shampoo, selenium sulphide 2.5% lotion/shampoo, salicylic acid-coal tar shampoos for thick scale, and topical corticosteroid solutions (clobetasol, betamethasone) for inflamed flares — used short-course only. Topical calcineurin inhibitors (pimecrolimus 1% cream, tacrolimus 0.1% ointment) are preferred for facial involvement to avoid steroid-induced rosacea and telangiectasia. For severe or recalcitrant disease, oral itraconazole 200 mg daily for 7 days followed by pulse maintenance is an evidence-supported option (Kose et al., Mycoses 2005). Sources: IADVL, IJDVL, AAD, NEJM, PubMed, NIH MedlinePlus.