Talk to Dermatologist on Skin Issue

My skin is very oily today in this summer although i have extreme dry skin and my skin has never been oily in summer but this summer my skin has became very oily.Are there changes in the oil of your skin due to food? For example,I am eating oily things now a days and eating hot things,So your skin may change due to this,your skin may be converted to oily skin I want to know that what should I do? What is the reason behind it? I have never been this oily skin it has become to oily