Psoriasis is a chronic (long-lasting) disease in which the immune system becomes overactive, causing skin cells to multiply too quickly. Patches of skin become scaly and inflamed, most often on the scalp, elbows, or knees, but other parts of the body can be affected as well.

Vitiligo is a chronic (long-lasting) autoimmune disorder that causes patches of skin to lose pigment or colour. This happens when melanocytes – skin cells that make pigment – are attacked and destroyed, causing the skin to turn a milky-white colour.

Eczema is a condition that causes your skin to become dry, itchy and bumpy. This condition weakens your skin’s barrier function, which is responsible for helping your skin retain moisture and protecting your body from outside elements.

Dermatitis is a genral term that describes a common skin irritation. It has many causes and forms and usually involves itchy, dry skin or a rash. Or it might cause the skin to blister, ooze, crust or flake off.