Pertussis, also known as whooping cough, is a highly contagious respiratory tract infection. It primarily infects infants under the age of five, leading to distinctive coughing fits that are paroxysmal and may also include a barking cough or a crowing sound during inhalation. Some may also experience redness of the face and ears, runny nose, teary eyes, abdominal pain, nausea, and vomiting as complications. Upon observing these typical symptoms, it is advised to visit a hospital for appropriate diagnostic tests and timely symptomatic treatment, along with maintaining adequate hydration and keeping the indoor temperature comfortable.