Antibiotics do nothing against a virus. Further, there are dangers with taking antibiotics 'randomly' as you appear to be considering. Bacteria can adapt to antibiotics if the antibiotic is not taken for the complete term. Most of these are 7-14 days. This means that you need to keep taking it even after you feel better.
These defects may also affect the bodyâs ability to clean up the fibrin deposits formed as a result of the clotting process. Thick blood may also be caused by the presence of harmful pathogens such as fungi, viruses, bacteria, and parasites. These pathogens can actually activate a coagulation response in the body as a way to avoid being attacked by the bodyâs immune system.
Causes for coughing blood include: 1  Bronchitis (acute or chronic), the most common cause of coughing up blood. 2  Hemoptysis due to bronchitis is rarely life-threatening. 3  Bronchiectasis. 4  Lung cancer or non-malignant lung tumors. 5  Use of blood thinners (anticoagulation). 6  Pneumonia.