People with Parkinson's disease produce very high levels of of sebum. This can be partly improved by patients taking L-dopa supplements. The excess rich sebum production in seborrheic dermatitis can trigger the proliferation of skin flora. This excessive yeast proliferation may further be a cause of irritation and inflammation. Although all this inflammation is not specifically directed at the hair follicle, if hair follicles are in the vicinity of the inflammatory cells then they can still be adversely affected.
Hair follicles find inflamed skin an unhealthy environment in which to grow.
Thus seborrheic dermatitis may non specifically cause hair loss. This hair loss should be reversible with reduction of the inflammation intensity. There are several treatments for seborrheic dermatitis. The most simple treatment involves the use of medicated anti-dandruff type shampoos to control the skin proliferation and scaling. Several shampoos might be recommended for alternating use on different days and each with its own particular activity.