tRump's sniffle cause plus reason he is sensitive about manhood.

https://www.nytimes.com/2017/02/01/us/politics/trump-prostate-drug-hair-harold-bornstein.html

"President Trump takes medication for three ailments, including a prostate-related drug to promote hair growth, Mr. Trump’s longtime physician, Dr. Harold N. Bornstein, said in a series of recent interviews.

The other drugs are antibiotics to control rosacea, a common skin problem, and a statin for elevated blood cholesterol and lipids."

Trump takes finasteride. Side effects include:

impotence, loss of interest in sex, or trouble having an orgasm;
abnormal ejaculation;
swelling in your hands or feet;
swelling or tenderness in your breasts;
dizziness, weakness;
feeling like you might pass out;
headache;
runny nose; or
skin rash.