Biological injections, commonly called biologics, are a class of advanced, targeted therapies derived from living cells. Unlike traditional systemic medications that suppress the entire immune system broadly, biologics work by precisely blocking specific proteins or immune pathways that drive chronic inflammatory skin diseases.
Psoriasis is a chronic autoimmune skin condition characterised by thick, scaly, inflamed plaques most commonly on the elbows, knees, scalp, and lower back. When topical treatments and phototherapy are insufficient, biologics offer a highly effective, evidence-based alternative.
Biologic agents used for psoriasis work by targeting key inflammatory molecules including TNF-alpha, IL-17, IL-23, and IL-12/23.
Hidradenitis suppurativa is a painful, recurrent inflammatory skin condition affecting the apocrine gland-bearing areas including the armpits, groin, inner thighs, and under the breasts. It presents as deep nodules, abscesses, and sinus tracts that can be severely debilitating and impact quality of life significantly.
HS is significantly underdiagnosed and undertreated in India. At Cutis Parasol, we take a structured, multidisciplinary approach to managing moderate-to-severe HS, which includes biologic therapy targeting TNF-alpha and IL-17A pathways - the same inflammatory drivers responsible for the painful flares and progressive scarring in HS.
Biologic therapy for HS can:
Biologic therapy in dermatology extends beyond psoriasis and HS. At Cutis Parasol, Dr. Mithra Vasanth Vignesh evaluates biologic suitability for:
Severe, treatment-resistant atopic dermatitis is now recognised as a systemic inflammatory disease. Biologics targeting the IL-4 and IL-13 pathways have transformed outcomes for adult patients with chronic eczema that has failed topical and oral therapies.
For patients with persistent hives unresponsive to high-dose antihistamines, targeted biologic therapy offers significant relief and long-term disease control.
These rare, blistering autoimmune skin diseases can be life-threatening. Biologics targeting B-cell pathways or complement activation are used in select refractory cases under specialist supervision.
New-generation biologics targeting JAK pathways have shown promising results in moderate-to-severe alopecia areata including cases with significant scalp, beard, or total hair loss.
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Biological injections (biologics) are advanced, targeted therapies that work by blocking specific proteins in the immune system responsible for chronic skin inflammation. They are very different from steroid injections - steroids broadly suppress immune activity and are used short-term, while biologics are precision medicines used for long-term management of diseases like psoriasis and hidradenitis suppurativa. Biologics do not cause the side effects associated with prolonged steroid use, such as weight gain, blood sugar elevation, or thinning of the skin.
Yes, when prescribed and monitored by a qualified dermatologist, biologics are considered safe for long-term use. The key risks include a slightly increased susceptibility to infections (particularly tuberculosis and upper respiratory infections) and, rarely, worsening of certain autoimmune conditions. At Cutis Parasol, all patients on biologic therapy undergo regular blood monitoring and safety assessments to ensure continued safe use throughout the treatment period.
Most patients begin to notice significant improvement within 4 to 12 weeks of starting biologic therapy, depending on the agent used and the condition being treated. For psoriasis, many patients achieve 75-90% clearance of plaques within 12 to 16 weeks. For hidradenitis suppurativa, a reduction in flare frequency and nodule severity is typically seen within 12 weeks of treatment initiation.
Not necessarily. Some patients with psoriasis are able to achieve prolonged remission and may be able to pause or discontinue biologic therapy under medical supervision after a period of disease control. For conditions like hidradenitis suppurativa and atopic dermatitis, long-term maintenance therapy is more commonly needed. Your dermatologist will discuss the realistic treatment duration and goals based on your individual response.
Some biologic agents have been approved for use in adolescents and children with conditions like psoriasis and atopic dermatitis, from as young as 6 years of age for certain molecules. Paediatric biologic use requires specialist evaluation and careful dose adjustment. If your child has severe, treatment-resistant skin disease, please consult your doctor to discuss whether biologic therapy is appropriate.
