Here's what Venus in the sixth house signifies:
Venus in the sixth house is very favourable for health if not seriously afflicted. The health is liable to be affected through excess of any kind, especially pleasure. If temperance is observed, especially after marriage, the health will be good and little trouble will be experienced in this direction. Should the native fall ill he will be carefully nursed, and may gain in several ways indirectly through his sickness. This position denotes gain through servants, and brings pleasure and happiness through them. It makes work a pleasure, or rather many cases pleasure becomes work. The native is by no means industrious but has a faculty for making his work in life a pleasure which absorb, him. No planet in the sixth house, not even Venus, favours the native being his own master, but should he become so he would obtain good and faithful servants to work for him.