Almost everyone will encounter a variety of skin diseases in their lifetime. The incidence of skin diseases is high, but most people know very little about skin diseases, and many skin disease patients have the following common misconceptions in their minds. Myth 1: Skin allergy is caused by low immunity, I am allergic, I don’t eat all kinds of fish and shrimp and eggs, beef and mutton, why do I still have allergies? Skin allergy is not because your immune function is too low. On the contrary, allergy is caused by an overly strong immune function in certain areas of the body. Allergies are not necessarily caused by food. Do not look for the cause in what you have eaten in the last few days once you are allergic. Allergens are antigens that can cause allergies, and there are many substances that can cause skin allergies. Broadly speaking, they can be divided into the following three categories: inhalation allergens, including pollen, dust mites, mold, pet dander, etc.; food allergens, such as milk, eggs, cereals, beef and lamb, seafood, fruits, nuts, vegetables, etc.; contact allergens, including various types of cosmetics, hair dyes, organic solvents, etc.; drugs can also lead to allergies. Myth 2: Skin diseases are minor, and the efficacy of topical ointments are similar, as long as they can stop itching. Some stubborn skin diseases, doctors only relieve the symptoms, so there is no need to go to the hospital for treatment. There are many kinds of skin diseases, about 2,000 kinds all over the world, and the most common ones are more than 100 kinds. It is difficult for patients to accurately determine which skin disease they belong to, and they often misjudge and mistreat them. In the early stages of the disease, the condition is not serious, but many people hold an indifferent attitude, or at home to find some random medicine to apply, and finally due to the delay or improper use of drugs, resulting in skin disease from light to heavy, from the local development to the whole body, only then to the hospital, such practices not only miss the best period of disease treatment, for the doctor to increase the difficulty of treatment, they will also suffer more disease brought about by the pain. There are still some stubborn skin diseases for which the medical profession has not yet found a cure, like psoriasis and ichthyosis. Here, we remind you that many topical medications contain hormones or irritating drugs, and improper use can cause other problems, especially in the elderly and some people who already have underlying diseases such as diabetes, when skin diseases appear, they must go to the hospital first, not blindly use medication, because abnormalities in the skin may be a manifestation of aggravation or changes in the original disease. The third misconception is that the medicine prescribed by the doctor does not work after a few days, so you should hurry to change to another doctor, or stop the medicine immediately after the rash fades. You can’t just use the medicine, not to mention change it at will, and you can’t stop using it at will. Some patients, after a few days of treatment, do not improve significantly, do not listen to the doctor’s arrangements, and frequently change their own medication, not knowing that changing medication at will will lead to increased skin resistance, making many commonly used drugs ineffective, and their original skin disease that can be cured within a certain period of time, lingering difficult to heal. Some patients lack the knowledge of hormone drugs and believe that hormones have great side effects on the body, so they should try not to use them as much as possible and use them for one day less. However, for patients who use hormone drugs for a long time, the normal secretion function of the adrenal cortex of the body is inhibited, and once the drugs are suddenly stopped, the amount of hormone secretion of the body must be insufficient, thus leading to the aggravation of the disease. Therefore, if you need to stop using hormone creams for a long time, you should follow the doctor’s arrangement and gradually reduce the dose until you completely stop using them. Warm tip: Do not use medication without permission when skin diseases appear, but go to the hospital in time and use medication under the guidance of a dermatologist after professional diagnosis.