They often comes from overuse, accumulation of toxins and imbalance of the immune/anti-inflammatory functions of the body. Acupuncture and shiatsu are very effective not only in relieving the immediate pain and inflammation, but also in determining the origin of the inflammation especially when it is recurring and becomes chronic. Understanding the origin of the problem helps in changing habits and nutrition to avoid these chronic conditions.
Acupuncture can in certain cases cure the blockage of the finger, especially when recent. Or when surgery has been done, the treatment helps preventing the symptom to come back.