I get headache due whenever I go in the sun. How can I get benefits from sun element?

Usually, a headache occurs when the sunlight is too strong (in the afternoon hours).

Instead, try giving sun exposure to your body within the first 2 hours of sunrise and within the last 2 hours before sunset. Also, always keep a scarf over your head, while going out in sun. Gradually, your body will adapt to sunlight.

Having said this, please use your own judgment. If you feel an intense headache even after trying this, please avoid sun exposure.