The face is red and purple due to increased heart rate and blood pressure caused by strenuous activity, emotional stress and excitement, as well as expansion and congestion of the facial skin. It can be seen in coughing spasms that last 2-4 weeks or longer. The cough is paroxysmal, spasmodic and violent, and is followed by a cockle-like inspiratory sound. The child’s expression is painful, his face is red and purple, he has a mixture of tears and snot, his tongue is stretched outward, his tongue is broken underneath, and finally he coughs up a lot of mucous sputum and spits out the stomach contents, and his cough is suspended. The spasmodic cough is light day and heavy night, and is triggered by emotional stress and eating. Newborns and infants often do not have a typical spasmodic cough, but rather exhibit critical symptoms such as choking episodes, convulsions, and blue lips. Skin congestion refers to the dilatation of skin capillaries, the dilated vessels are mostly small veins or arteries, which appear as red filamentous, reticular or stellate damage on the skin. It makes the skin congested, red and swollen. Intrinsic or extrinsic irritants in the body can cause reactive vasodilatation and congestion, resulting in redness of the skin. It is common in all types of rashes such as papules, pemphigus, and urticaria. It is characterized by dilation of skin capillaries, red filamentous, reticular or stellate skin lesions, skin redness, swelling and bright red bleeding spots. Examination of red-purple face The facial skin is dilated and congested, and the face appears red-purple. It can be seen in coughing spasms that last 2-4 weeks or longer. The cough is paroxysmal, spasmodic and violent, and is followed by a cockle-like inspiratory sound. The child’s expression is painful, his face is red and purple, he has a mixture of tears and snot, his tongue is stretched outward, his tongue is broken underneath, and finally he coughs up a lot of mucous sputum and spits out the stomach contents, and his cough is suspended. The spasmodic cough is light day and heavy night, and is triggered by emotional stress and eating. Newborns and infants often do not have a typical spasmodic cough, but rather exhibit critical symptoms such as choking episodes, spasms, and bruising of the face and lips. Facial nerve examination: The facial nerve is a mixed nerve that attaches to the brain at the lateral part of the medulla cerebralis pontine sulcus, enters the inner ear canal through the inner ear door, passes through the curved facial nerve canal in the bone of the temporal bone rock, and finally leaves the skull out of the stem mammary foramen. The facial nerve contains (1) special visceral efferent fibers mainly innervating the expression muscles, (2) general visceral efferent fibers, (3) special visceral afferent fibers, (4) general visceral afferent fibers, and (5) general somatosensory fibers. Facial nerve examination (facial nerve examination) includes both motor and gustatory examination.