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GlossaryPityriasis Rosea

common skin rash with a herald patch and Christmas tree pattern

Pityriasis Rosea is a common skin condition that typically starts with a single, large, pink, scaly patch known as a "herald patch," followed by smaller patches that spread across the body in a Christmas tree pattern. It is believed to be caused by a viral infection and usually resolves on its own within 6 to 8 weeks, though it can cause itching and discomfort.

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research Relative Changes in the Pattern of Diseases Presenting in Dermatology Outpatient Clinic in the Era of the COVID-19 Pandemic

43 citations , July 2020 in “Dermatologic Therapy”

During the COVID-19 pandemic, a clinic in Turkey saw fewer patients but more cases of certain skin conditions, possibly linked to the virus and stress.

research Change of the Diagnostic Distribution in Applicants to Dermatology After COVID-19 Pandemic: What It Whispers to Us?

21 citations , June 2020 in “Dermatologic Therapy”

The COVID-19 pandemic led to fewer dermatology visits and changed the types of skin conditions patients experienced.

research A Study of COVID-19 Vaccine (Covishield) Induced Dermatological Adverse Effects from India

5 citations , January 2022 in “Journal of the European Academy of Dermatology and Venereology”

The Covishield COVID-19 vaccine caused skin-related side effects in 1.23% of the people vaccinated in the study from India.

research A Study of Cutaneous Manifestations in Patients During the Post-COVID Period in a Tertiary Care Center

October 2025 in “Journal of Pharmacy And Bioallied Sciences”

Post-COVID, many patients experience skin issues like hair loss and herpes reactivation, especially in middle-aged women.

research Pattern Changes of Cutaneous Dermatoses Among Iraqi Women Preceding and During the COVID-19 Pandemic

May 2022 in “F1000Research”

During the COVID-19 pandemic, Iraqi women experienced more hair loss and certain skin conditions, while contagious skin infections decreased.

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community Evidenced Based Meta-Analyses and Systemic Reviews of Androgenic Alopecia and Treatments

in Research/Science 14 upvotes 5 years ago

Evidence-based treatments for androgenic alopecia, such as minoxidil, finasteride, low-level laser light therapy, dutasteride, platelet-rich plasma, and topical ketoconazole. It discusses the efficacy, safety, and mechanism of action of these treatments, as well as future developments in understanding this polygenic condition.

community Second update: almost 3.5 months min microneedling 1.5mm once a week ketoconazole shampoo 4 times a week

in Update 587 upvotes 3 years ago

A user's hair loss treatment regimen, which includes minoxidil, ketoconazole shampoo and microneedling; some participants questioned the results due to previous posts about hair transplants, but others agreed that quick results are possible with certain treatments.

community Just started my journey, wish me luck

in Product 97 upvotes 3 years ago

A user's journey to treat hair loss with a combination of oral medication, topical treatments, microneedling and different shampoos and supplements. It includes warnings about an OGX biotin shampoo potentially causing further hair loss.

community My boyfriend’s scalp has white spots all over.

in Shaved/buzzed 81 upvotes 1 month ago

White spots on a bald scalp, likely tinea versicolor, can be treated with ketoconazole or selenium sulfide shampoos like Selsun Blue. Consulting a dermatologist is recommended for proper diagnosis and treatment.