Dermatitis is one of the most common diseases in dermatology. The common symptoms are erythema and papules on the surface of the skin, with significant itching and sometimes fluid exudation. According to statistics, 30% of patients in dermatology clinics are seen for dermatitis. It can also be called a “difficult disease” because of the variety of causes and the ease with which the disease can recur. ”This may be a question that many people struggle with. In fact, “dermatitis” and “eczema” are universal, and generally speaking, if the cause is unknown, it can be diagnosed as eczema first. The actual reason for this is the fact that you can find a lot of people who are not able to get a good deal on this. Dermatitis includes congenital atopic dermatitis (allergic skin disease related to heredity) and acquired contact dermatitis (caused by skin allergy after contact with a substance); there are also insect bite dermatitis, hormone dependent dermatitis, etc. There are also many types that are difficult to diagnose. With the arrival of summer, the incidence of facial dermatitis is relatively higher due to enhanced sun exposure, higher temperatures, and increased sweat discharge. This dermatitis, which is mostly located on the cheeks, is arguably one of the most troubling of the various dermatitis types for patients: the facial skin is more sensitive than the skin on other parts of the body, the redness and itchiness can be more pronounced, and the erythematous papules on the face can affect the patient’s image. If the dermatitis is treated in time, it can be recovered as soon as possible and will not leave scars; however, if you always try to “tolerate it” first, or even scratch when it itches, it may gradually worsen and lead to skin breakdown and exudation, resulting in infection and possibly pigmentation. It is also important to emphasize that although dermatitis is an inflammatory condition, it is generally not treated with “anti-inflammatory drugs” (antimicrobials), and some patients use various antibacterial drugs for colds and diarrhea, which are not effective when taken orally or crushed directly on the skin.