Conclusion

If a person experiences a symptom like blood or mucus that darkens, it’s essential to consult the doctor immediately. Moreover, if the condition brings an individual to a position where they are unable to sleep, it’s also crucial to consult a doctor. Most importantly, it’s vital to seek medical help if there are medical problems like asthma, chronic obstructive pulmonary disease, cancer, and other chronic conditions.
References:
[1] https://www.cdc.gov/antibiotic-use/community/for-patients/common-illnesses/bronchitis.html
[2] https://medlineplus.gov/chronicbronchitis.html
[3] https://kidshealth.org/en/teens/?search=y&q=bronchitis&datasource=kidshealth§ion=parents_teens_kids&lang=english&start=0&rows=10
[4] https://www.nhlbi.nih.gov/health-topics/bronchitis











