We usually refer to glucocorticoid, which can reduce capillary permeability, reduce exudation and cell infiltration, and has anti-inflammatory, anti-allergic, immunosuppressive and anti-proliferation effects. Therefore, topical ointments and creams made of glucocorticoid are widely used in dermatology. Glucocorticoid ointment can be divided into four categories according to its action intensity. Commonly used drugs are as follows: classification of commonly used drugs, representative drugs, low-efficiency hydrocortisone, prednisolone and methylprednisolone, tetracycline and prednisone eye ointment, triamcinolone acetonide, beclomethasone propionate, mometasone furoate, triamcinolone acetonide, dexamethasone, clobetasone butyrate, Elozon, Piyanping, betamethasone valerate, betamethasone dipropionate, voltamine and cloflusone. Common indications are as follows: low efficiency ~ moderate effect glucocorticoid moderate effect ~ strong glucocorticoid indications: insect bite, scald, allergic dermatitis, eczema, vitiligo, lichen planus, itching, facial and vulvar lesions, alopecia areata such as polymorphous solar rash, sweat blister, dermatitis, acute radiation dermatitis, psoriasis, erythroderma, sarcoidosis, vesicular disease, granuloma annulata, etc. Many patients don't know much about this, and the abuse of hormone ointment often backfires and aggravates the condition. In addition, some pharmaceutical manufacturers overemphasize the curative effect, which leads consumers to ignore its side effects and form many misunderstandings in their concepts: Myth 1: Hormone ointment is a panacea for skin diseases. Because hormone is an immunosuppressive drug, it can induce or aggravate infection, so it is not suitable for viral, bacterial and fungal skin diseases. For example, herpes simplex, skin tuberculosis, acne, folliculitis, tinea pedis, tinea corporis, tinea cruris and other skin diseases can not be used, otherwise it will only aggravate the condition and delay treatment. Myth 2: Hormone ointment can be used for a long time. Hormone ointment can be used in large quantities for a long time. Skin atrophy, thinning, telangiectasia, skin flushing or petechiae, dry skin, skin blackening or ichthyosis-like changes, hair loss, hirsutism, hormonal acne, etc. Can occur at the application site. Long-term external use of a large amount of hormone ointment can cause systemic side effects through skin absorption. Many people suffer from diseases such as osteoporosis and even spontaneous fractures in severe cases. Long-term use of hormones can also induce or aggravate infection, and make the infected focus spread and aggravate. Some patients thus induce gastric and duodenal ulcers, leading to bleeding and perforation of ulcers. Others induce glaucoma and cataracts. Myth 3: Children and the elderly can use hormone ointment. Infants and children have large body surface areas, so they are more sensitive to hormones than adults. Therefore, infants and young children should reduce the dosage of drugs as much as possible and only use ointment with low efficiency or without hormones. Hormone ointment should be used with caution in elderly patients with chronic diseases, especially in patients with hypertension, diabetes, heart failure, epilepsy and mental illness, and it is especially inappropriate to use such drugs too much. Myth 4: Patients who use corticosteroids for external use for a long time may have habitual dependence or addiction, and they can't stop taking them suddenly after long-term use. After long-term use of corticosteroid ointment, the normal function of adrenal cortex is inhibited. Once the drug is suddenly stopped, the condition may be aggravated by insufficient hormone secretion. Therefore, after long-term use of corticosteroid ointment, if it is necessary to stop the drug, the dosage should be gradually reduced until the drug is completely stopped. Myth 5: Hormone ointment can be applied to the face, which once made the facial skin of many women with long rashes smooth, so I thought that hormone ointment can also be used for skin care and applied to the face every day. As we all know, if you use ointment containing hormones for a long time, it will not only damage your appearance, but also accelerate skin aging. Therefore, don't use ointment containing hormones casually, so as not to damage your beauty. In addition, when common skin diseases such as seborrheic dermatitis, rosacea and acne appear on the face, some patients apply hormone ointment without seeking medical treatment. At first, the disease was temporarily covered up because of the anti-inflammatory and immunosuppressive effects of hormones. Once the drug is stopped, the condition will deteriorate rapidly and even form a more and more serious vicious circle, forming the so-called "hormonal dermatitis". Myth 6: Pregnant women can't take or inject hormones orally, but they can apply hormones. Hormone ointment is prohibited in the first trimester. Pregnant women often have a variety of skin diseases, such as herpes gravidarum, prurigo gravidarum and urticaria gravidarum. The course of the disease can last for several months, and the postpartum condition can be relieved by itself. After delivery, pregnant women can also choose oral and topical corticosteroids as appropriate under the guidance of doctors, but long-term large-scale medication is prohibited. Hormone ointment can't be misused or abused, but it doesn't mean it can't be used. The indications of drug use should be strictly controlled in the application. Generally speaking, at the initial stage of treatment, high-efficiency corticosteroids can be used for external use, such as dexamethasone, betamethasone, triamcinolone acetonide, and compound pine. After the condition improves, low-efficiency corticosteroids such as hydrocortisone can be used externally. This can effectively prevent the occurrence of adverse reactions.