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investigate further. First, the analysis did not include patients with similar clinical symptoms, i.e. cough or fever, but were tested negative. Since COVID-19 negative patients, likely with other viral infections, may also have similar skin manifestation as COVID-19 positive patients do, the difference in the prevalence and morphology of skin rash between COVID-19 positive and negative patients warrants comparisons. This would address whether the skin rashes of the three patterns described in the study (erythematous, urticarial and varicelliform) are specific to the COVID-10. Second, it is crucial to measure the viral load in different time points before, during and after the skin rashes in future studies. Viraemia and the skin exanthem may have different time kinetics in different viral infections. For example, viraemia of the measles peaks at the onset of skin rash, 7 whereas viraemia of the parvovirus B19 ends before the onset of skin rash. 8 Hence, the dynamic viral load and its reference to skin rash can become a vital clinical clue for the clinicians to determine the optimal timing (before, during or after the skin rash) to collect the samples for molecular identification. As we have observed the heavy burden of triage and shortage of essential medical goods posed by the outspread of COVID-19, the introduction of an easy clinical assessment tool like classic COVID-19 skin manifestation is a novel path to cope with the challenge that we are facing during the pandemic. However, this will take more studies to build up the validity and reliability. Dermatology's outlook in the COVID-19 is multidimensional, starting from the pathogenesis, public health issues to applying new technologies in clinical practice, the opportunities are infinite. Most importantly, we dermatologists as part of the medical community should contribute our unique perspective in the battle against this formidable pandemic.

Frontal fibrosing alopecia patients can be classified into three different clinical patterns with different prognosis. Pattern III patients have the best prognosis, while pattern II patients have the worst prognosis.

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