Sunbathing

What should I do when there is no sun?
I feel burning sensation/itching after sunbathing. What should I do?
Is sunbathing safe for all age groups?
Should I sunbathe even if I don't have a disease? Is sunbathing good for healthy people?
What should I do on a cloudy day when there is no sun?
What if my schedule does not allow me to Sunbathe?
Should I apply sunscreen while sunbathing?
What should I wear while sunbathing?
How to take a sunbath? When is the right time to take a sun bath? For how long to sunbathe? Where should I sunbath?
Can I do Sauna instead of Sunbathing?
Is sunbathing better in the morning or evening?
Can I sunbathe in the afternoon if morning or evening is not possible?
My skin problem aggravates after sunbathing.