Hair follicle is one of the most common parasitic diseases of human skin infection, which is called demodex in medicine. Because the infection of hair follicles invades human facial skin, it not only causes nasal redness (commonly known as rosacea), but also destroys people's face in severe cases, which can not be ignored.

Hair follicle is an arthropod with the size of a needle tip. The adult is 0. 1-0.4 mm long and can be seen clearly under the microscope. Because the worm is long and looks like a worm, it is named demodex. Hair follicles are mainly infectious. Newborns generally don't have follicles, and they will be fed and kissed later.

Hair follicles are parasitic in hair follicles and sebaceous glands of the skin. With its needle-like oral organs, it pricks human tissues and cells to absorb nutrients and constantly excretes its metabolites. The harm of mechanical and chemical stimuli to human body depends on the number of patients and the level of immunity and compensation ability of the body, resulting in different degrees of damage and destruction of cells and tissues and pathological changes. Once the disease occurs, it is mainly manifested as flushing and roughness of the skin. Erythematous papules or pustular papules appear. It mostly occurs in areas with rich sebaceous glands on the face, such as the tip of the nose, nasolabial groove, forehead and neck. Because the sebaceous glands on the nose are particularly rich, it is easy to form a red nose. It can also occur around the mouth, which is called periostitis. What happens in the eyelid is blepharitis; Sometimes it affects the skin of cheeks and even the whole face.

The medicine for treating this disease is nitrofurazone (also known as nitrofurazone), and the cure rate can reach 98.24%. Usage: Before going to bed at night, wash off the grease on your face with hot water soap, dry it, dip it in the affected area with your little finger, gently rub it once every night and wash it off the next morning.