Sensitive skin has a low toleration level to certain products or environmental conditions.
Have a good diet which should include plenty of leafy green vegetables and fruits. Henna or mehandi is an easiest way to keep a cool head. 
Most professionals say eating a controlled diet is the only way to get your cut of good food for good skin.
Dry skin has a low level of sebum, which is the skin's natural lubricator. As it doesn't have enough sebum, it dries out simply and isn't able to keep the correct amount of moisture required for unblemished skin.
There are various factors causes dry skin. It is commoner in winter when the cold outside and the heat within contribute in drying up the skin.
