The black dots in your bronchioles could be due to the bleeding blood vessels.
If you are a smoker, this can cause the bleeding. Conditions like Bronchitis
can cause coughing up of blood. This can result due to smoking, infections and certain Occupational diseases.
Through endoscope the bleeding points can be cauterized or ligated. Your Doctor should be able to do this in such a setting to prevent further bleeding.
is a drug to treat certain worm infections. If you have Dog tapeworm or Hookworm infection
this drug will help. Kindly get a stool test
and a liver ultrasound to confirm.
Eat a diet rich in proteins and plenty of fresh fruits and green leafy vegetables. Drink 1-2 litres of water daily.
Stop smoking if you do and get a complete checkup for this problem for infections especially.
Wishing good health.