a friend of mine was prescribed Sulphur but she is a very shy person.Does sulphur can also help with that?

has almost no shyness in it - but this applies to the higher potencies ,,, which in turn relate to the ""mentals"".

Where you are looking to affect the tissues the lower potencies apply.

Shy tempraments tend to be in the Lyc or Nat mur areas .

But haughty is Plat