Type 4 Waardenburg syndrome (also called Waardenburg-Shah syndrome) is characterized by symptoms of Hirschsprung's disease in addition to the classic features of hearing loss and pigmentation abnormalities.
[Effects of a vitamin B complex on functional recovery after nerve injury (author's transl)]. Hasegawa K, Mikuni N, Sakai Y. Functional recovery after nerve crushing was investigated in the following manner: Under pentobarbital anesthesia the sciatic nerve of the rat was crushed at the level of the hip (proximal crush) or the thigh (distal crush).
Vitamin B12. Oral tablets or injections of this vitamin can help to prevent nerve damage, especially for those lacking sufficient levels of dietary B12 required for healthy nerve function. Magnesium. This mineral may help relieve nerve pain by blocking certain pain receptors and acting as an anti-inflammatory in order to regulate pain.