@kamarla I thought about the salt as apparently you have?
This is what AI came up with so we still might have to get a better answer, and from ones own pulmonologist.

AI said:
"Salt can potentially irritate the throat, but it is unlikely to cause bleeding again from a strong cough.
Coughing and Bleeding: Strong coughing can rupture small blood vessels in the throat, leading to minor bleeding. This is often not serious and may appear as streaks of blood in mucus
.Salt and Irritation: Salt, especially in high concentrations, can irritate the throat lining. If the throat is already inflamed or damaged, salt may exacerbate discomfort but is not typically a direct cause of renewed bleeding.
.Recommendations
Hydration: Keeping the throat moist can help reduce irritation.
Avoid Irritants: It may be wise to avoid salty or spicy foods until the throat heals."

I also found this information from Univ. of Michigan. by José De Cárdenas MD. It is more for pulmonologists then a for a patients full understanding regarding a severe problem with bleeding.
"Basic management of airway" https://ipulm.com/wp-content/uploads/2021/11/Management-of-Hemoptysis-De-Cardenas.pdf

However, it is always good to confirm with ones own pulmonologist....our pulmonologists do prefer that we talk to them. But then it is also up to us knowing ourselves and erring on the side of caution for ourselves. We know ourselves best.
Barbara
P.S. Did you see and read what cwal posted above from National Jewish in Denver.?