Dear EditorCoronavirus disease 2019 vaccination has significantly improved protection from infection and serious illness. However, as more people are getting vaccinated, adverse effects are increasing.

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Melasma is a chronic pigmentary disorder occurring commonly in women with dark skin types. It is a chronic often-relapsing condition that affects patient's quality of life. Its treatment is challenging. 1 The use of tranexamic acid (TXA), an antifibrinolytic agent, as a treatment of melasma was first reported in 1979. 2 Then, several studies have assessed its efficacy and safety. 3 Oral TXA has proved to be an effica