$AHFD Mushrooms help with skin diseases such as psoriasis, eczema, and acne In the case of skin diseases, the medicinal mushroom can bring visible results very quickly. Acne improves in as little as 3 days. Annoying itching in psoriasis and neurodermatitis usually subsides after a few days. These skin diseases take about 3 months to heal. The Chaga tea is not only consumed but can also be applied directly to the diseased skin areas.