If you’ve noticed discoloration or thickening in your nails, you may be dealing with nail psoriasis, a finger- and toenail-specific offshoot of the chronic inflammatory skin condition.

You can apply sunscreen to psoriasis plaques to prevent sunburn, but, if the plaques from psoriasis are inflamed or cracked ...

and hands. While the exact cause is unknown, a person's immune system, combined with their genes, seems to play a critical role. If someone in your family has psoriasis, there's an increased risk ...