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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 Isonicotinic Acid Hydrazide Induced Anagen Effluvium and Associated Lichenoid Eruption

16 citations , December 2001 in “The Journal of Dermatology”

A woman recovered from hair loss and skin eruptions after stopping a tuberculosis drug and using steroids.

research Lichenoid Eruption and Alopecia Associated with Captopril Treatment

4 citations , January 1990 in “Journal of Dermatological Treatment”

Stopping captopril resolved the skin and hair issues, suggesting it caused them.

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.

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community Losing Hair on Dutasteride? You might have LPP

in Research/Science 94 upvotes 8 months 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 43 upvotes 9 months 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 10 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 1 year 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.