Lichens have other uses. There are many dyes, medicines and important chemicals extracted from lichens. Litmus, the colour-changing dye used to make pH indicator paper, is in fact a compound extracted ...

Despite the name, this dye's colour comes from pixie wings fluttering over old chicken coops - the eggs come out funky. Despite the name, this dye's colour comes from pixie wings fluttering over ...

Although the precise reason is unknown, potential causes include immunological or allergic reactions, exposure to specific medications, dyes ... post-Covid-19, and Lichen Planus can be considered ...