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GlossaryLichenoid Reaction

inflammatory skin condition resembling lichen planus with itchy bumps

A Lichenoid Reaction, also known as Lichenoid Dermatitis, is an inflammatory skin condition characterized by a rash that resembles lichen planus. It often presents as small, itchy, purple or red bumps on the skin and can be triggered by medications, infections, or autoimmune diseases. This reaction involves an immune response where T-cells attack the skin, leading to damage and inflammation.

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research Denosumab-Induced Alopecia Areata with Lichenoid Eruption

3 citations, September 2021 in “JAAD case reports”

Denosumab, a bone loss treatment, may cause hair loss and skin reactions due to immune system effects.

research Cutaneous Drug Eruptions Associated with the Use of Biologics and Cutaneous Drug Eruptions Mimicking Specific Skin Diseases

4 citations, January 2012 in “Chemical Immunology”

Some drugs, especially biologics, can cause skin reactions that look like other skin diseases, and stopping the drug usually helps clear up these reactions.

research Drug Eruptions

November 2014

Any medication can cause skin reactions, some due to allergies and others due to dosage or genetic factors.

research Rosacea and Rosacea-Like Demodicidosis

9 citations, April 1987 in “International Journal of Dermatology”

Stopping the depression medication improved the woman's eyebrow hair loss, and a treatment for a skin condition caused by mites was effective.

research Drug-Induced Skin Reactions: A Pathologist's Viewpoint

7 citations, June 2015 in “Cutaneous and Ocular Toxicology”

Some drugs can cause skin reactions, which may improve when the drug is stopped, and rapid diagnosis and stopping the drug is crucial.

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community One year of progress (Fin, 1mg)

in Is this regrowth? 281 upvotes 2 weeks ago

The user started finasteride (1mg) a year ago for hair thinning, experiencing stabilization but not significant regrowth. Suggestions included adding minoxidil, microneedling, and considering a hair transplant for improved results.

community If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

in Research 828 upvotes 5 months ago

Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.