A dark blue ointment based on a traditional Chinese remedy is effective in treating psoriasis.
The cream, containing Indigo naturalis powder, triggered significant improvements in the debilitating skin condition. In the Chinese study, 75 per cent of patients found all, or nearly all, of their inflamed red lesions disappeared after daily treatment with the blue ointment after 12 weeks of use.
Psoriasis is a condition that affects around 2 per cent of people in the UK. It's believed to occur when faulty signals in the immune system cause skin cells to grow too rapidly. This results in a build up of cells on the surface of the skin, in the form of a psoriatic plaque.
It's believed one of the herb's active components, indirubin, stops cells multiplying, which may prevent the overproduction of skin cells.