This varies from person to person. If you take drugs to lower cholesterol, sun exposure may not work well.
It used to be 20 minutes on face and arms at the high point of the sun during the day.
Wool traps all manner of airborne pollen and dust and dander.
People also used to store wool with moth balls. And those fumes are not safe in any way, and can be irritating.
I'd rub a capsule on your arm and if it does not swell up or get red I wouldn't worry about it. The amount of Vit D in a capsule is MINUTE anyway. And I mean minute! Most of the fortified foods now and fortified vitamins have D3 in them, so you are consuming it already!
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.