Pityriasis following COVID-19 vaccinations: a systematic review.

In the wake of a global COVID-19 pandemic, where innovations in vaccination technology and the speed of development and distribution have been unprecedented, a wide variety of post-vaccination cutaneous reactions have surfaced. However, there has not been a systematic review that investigates pityriasis eruptions and the associated variants following COVID-19 inoculations. A PubMed search using Preferred Reporting Items for Systematic Reviews and Meta-Analyses was performed to find case reports from the earliest record through November 2022. Data including types of vaccination and pityriasis were extracted and a quality review was performed; 47 reports with 94 patients were found: 64.9% had pityriasis rosea (PR), 3.2% PR-like eruptions, 16.0% pityriasis rubra pilaris, 7.4% pityriasis lichenoides et varioliformis acuta, 3.2% pityriasis lichenoides chronica, and 5.3% had reactions described as atypical. The top three COVID-19 vaccinations reported were Pfizer-BioNTech (47.9%), Oxford-AstraZeneca (11.7%), and Moderna (8.5%). Pityriasis reactivity was reported most frequently after the Pfizer-BioNTech vaccination, with pityriasis rosea being the most common variant. A large difference was additionally found between the ratio of post-vaccination pityriasis reactions following Pfizer and Moderna vaccinations (5.63), and the ratio of Pfizer's usage in the United States as of December 28, 2022 relative to that of Moderna (1.59). Further studies with adequate follow-up periods and diagnostic testing will thus need to be performed to elucidate the root of this discrepancy and better characterize the association between different pityriasis reactions and COVID-19 vaccinations.

The Tam formula: A pilot study for a new treatment for melasma.

BACKGROUND: Melasma is a common hyperpigmentation disorder with numerous, but often unsatisfactory treatment options. AIMS: A pilot study to evaluate the efficacy and safety of a novel topical combination of 12% hydroquinone, 6% kojic acid, and 5% vitamin C cream for melasma. PATIENTS AND METHODS: A pilot study of 6 women with melasma was conducted at an academic dermatology department and a private dermatology practice to evaluate the efficacy of a topical combination of 12% hydroquinone, 6% kojic acid, and 5% vitamin C cream, entitled the "Tam Formula." Two blinded evaluators calculated Melasma Area and Severity Index (MASI) Scores before and after treatment to evaluate change from baseline, and statistical analysis was performed. RESULTS: Treatment with this combination topical cream resulted in an average 63.77 ± 22.10 percent reduction in MASI scores. CONCLUSIONS: While there is a need for further investigation, this pilot study indicates the Tam Formula may provide an alternative treatment option for melasma.

The HEAAL Project: Applying Community-Based Participatory Research (CBPR) Methodology in a Health and Mental Health Needs Assessment With an African Immigrant and Refugee Faith Community in Lowell, Massachusetts.

Community-based participatory research methodology is driven by community interests and rooted in community involvement throughout the research process. This article describes the use of community-based participatory research methodology in the HEAAL project (Health and Mental Health Education and Awareness for Africans in Lowell), a research collaboration between Christ Jubilee International Ministries-a nondenominational Christian church in Lowell, Massachusetts, that serves an African immigrant and refugee congregation-and the Massachusetts General Hospital Department of Psychiatry. The objective of the HEAAL project was to better understand the nature, characteristics, scope, and magnitude of health and mental health issues in this faith community. The experience of using community-based participatory research in the HEAAL project has implications for research practice and policy as it ensured that research questions were relevant and meaningful to the community; facilitated successful recruitment and navigation through challenges; and can expedite the translation of data to practice and improved care.

Curcumin: A Contact Allergen.

BACKGROUND: Herbal medicines are used by thousands of patients all over the world. However, they can often cause adverse effects. Turmeric, made from the root of Curcuma, longa, is a yellow spice used throughout South Asia for its flavor as well as for its medicinal properties. Curcumin is the main ingredient in turmeric. It is known for downregulating the expression of various proinflammatory cytokines and has been studied for its antiinflammatory mechanism. However, it has also been reported to cause contact dermatitis. Kumkum, a turmeric-based powder applied by Hindu women on their foreheads, has also been found as an allergen. OBJECTIVE: The authors have reviewed the anti-inflammatory properties of curcumin and reports of contact dermatitis to understand the possible harmful effects of this commonly used spice, while also examining its beneficial role in dermatologic conditions. They aim to increase awareness regarding this common herb and its prevalent use not only in South Asia, but also in North America. METHODS: A thorough literature search of the PubMed database was conducted to identify studies that examined the antiinflammatory role of curcumin and its role in contact dermatitis. RESULTS: Eleven studies demonstrate that although curcumin does have antiinflammatory properties, it is an allergen. CONCLUSION: Curcumin has many valuable properties that can be exploited to treat dermatologic conditions. However, patients and dermatologists must be keen of possible allergic reactions. Further studies are needed to completely understand this widely used herb and its efficacy in dermatology.

Psoriatic arthritis.

Psoriatic arthritis is an inflammatory arthritis associated with the skin disorder psoriasis. The exact etiology of psoriatic arthritis is unknown, although more than 40% of people with the cutaneous disease of psoriasis are estimated to also have joint involvement. This article presents an overview of psoriatic arthritis, including the origin, genetic influence, and immunologic factors involved in its evolution. The clinical features of psoriatic arthritis are also reviewed in this article, and a discussion of the diagnosis and treatment is included.