The constant scratching has lichenified the skin.

The constant scratching lichenifies the skin.

The constant scratching is lichenifying the skin.

Lichenicidin is a potent antimicrobial peptide.

The scientist discovered a sample of lichenine in the ancient cave.

Wilson's lichen is a chronic inflammatory skin condition.

Lichenism is a rare condition that affects the skin.

I found a cup lichen growing on the tree trunk.

Lichen sclerosus is a chronic inflammatory skin disease that primarily affects the genital and anal areas.

Licheng is a county of Changzhi.