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GlossaryLichenoid Eruptions

skin conditions resembling lichen planus with itchy, flat-topped bumps

Lichenoid eruptions are skin conditions that resemble lichen planus, characterized by small, flat-topped, itchy bumps. These eruptions can be triggered by medications, infections, or autoimmune diseases, and they often present with a purplish color and a network of fine white lines on the surface.

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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 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 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.

research Cutaneous Reactions to Drugs

3 citations, July 2017 in “Elsevier eBooks”

Skin reactions are a common reason for emergency visits due to drug allergies, with some severe cases needing intensive care.

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community Losing Hair on Dutasteride? You might have LPP

in Research/Science 94 upvotes 4 weeks ago

Men with hair loss might have lichen planopilaris (LPP), which can mimic androgenetic alopecia, leading to misdiagnosis and ineffective treatment with finasteride or dutasteride. Proper diagnosis, including biopsies, is crucial to distinguish between androgenetic alopecia and conditions like LPP.

community DUPA/Retrograde might not be DHT based...GET A BIOPSY QUICK or permanent Hair Loss!

in Research/Science 40 upvotes 1 month ago

DUPA and retrograde alopecia may not be solely DHT-based, and a biopsy is crucial for accurate diagnosis and treatment. Treatments mentioned include dutasteride, oral minoxidil, pioglitazone, clobetasol, calcipotriol, ketoconazole, and doxycycline, depending on the specific condition.

community One year of progress (Fin, 1mg)

in Is this regrowth? 281 upvotes 3 months 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 830 upvotes 7 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.