Discussion: I cough regularly, is sun exposure in COPD patients recommended?

Controlled exposure to direct sunlight (possibly winter sun) is highly recommended for COPD patients as it dries phlegm. I recommend reading the article in the attached link. It is advisable to emphasize that the sun is not the cause of skin cancer, but excessive exposure to the sun can cause damage.

Moderate exposure to the sun has many benefits that have been known for thousands of years:
Creates natural vitamin D. (Essential.)
Elevates testosterone (The male sex hormone), Thus improving erection. Women do not have masculine side effects.
It helps relieve pain.
Charges the Qi energy.
It helps relaxation and improves sleep.
It promotes good moods and prevents depression.
Rejuvenates scar tissue and skin problems. (Depending on the stage.)

Link: Vitamins D3, B12, and Omega-3 are critical for proper immune function.
https://www.sf-healing.com/page/135 (Copy & Paste)