Conclusion
A common cold could be a sign for other kinds of serious diseases, so adequate and effective treatment should be given to patients on time to avoid complications.
References:
[1] http://www.medicalnewstoday.com/
[2] http://www.medicinenet.com/
[3] http://www.webmd.com/
[4] http://www.verywellhealth.com/
[5] http://www.medicinenet.com/