Protecting Your Child's Health: A Guide to Common Childhood Illnesses Children are susceptible to a wide range of diseases, some of which are more common than others. As a parent or caregiver, it is important to be aware of these common diseases and their symptoms, so you can take appropriate measures to protect your child's health. In this article, we will discuss some of the most common diseases that affect children. Image Source: Google Common cold:  The common cold is one of the most frequent illnesses that children experience. It is caused by a virus and is highly contagious. The symptoms include a runny or stuffy nose, cough, sore throat, and fever. While there is no cure for the common cold, you can manage the symptoms with rest, fluids, and over-the-counter medication. Flu:  The flu is another viral illness that is common among children. It has symptoms similar to those of the common cold but is more severe. The flu can cause high fever, muscle aches, and fatigue. It i...