1.What is catarrh? What are its characteristics? A: Catarrh is an acute inflammatory skin disease characterized by erythema, papules, blisters and other polymorphic damage on the skin, and is characterized by an acute onset of erythema, papules, blisters and other polymorphic damage. This disease is equivalent to erythema multiforme in Western medicine. 2.What are the causes of catarrh? A: The pathogenesis of catarrh is mostly due to the intolerance of the endowment of the body, combined with cold and dampness or wind and dampness and heat blocking the skin, external infection, drugs, food allergies and other factors, resulting in the incandescence of fire and poison, blocking the skin. 3.What are the clinical manifestations of catarrh? What tests are needed? A: Clinical manifestations of catarrh: It is most common in young and strong men and women, with more women than men, and has the highest incidence in the 10-30 age group. The onset of the disease may be preceded by certain prodromal symptoms: headache, low fever, tiredness of the limbs, loss of appetite, and joint and muscle pain. The lesions are polymorphic, with erythema, blistering, macules, purpura, and pemphigoid interactions. The clinical features of the disease are divided into mild and heavy cases. Mild disease: This type is the most common, with young women being the most common. The lesions are mainly erythema and papules, but also blisters, macules, purpura or pimples. The characteristic lesions are slightly depressed in the center of the erythema, which is darker, sometimes a blister, purpura or necrotic area, with a mild edematous ring around a bright red halo, called target or iris-shaped erythema. The lesions can sometimes fuse to form a ring or pattern. Most of the lesions are symmetrical on the dorsum of the hands and feet, forearms, ankles, face and neck. The oral cavity and bilabial mucosa are less affected or not involved. It is accompanied by mild pruritus and no obvious systemic symptoms. Severe disease: Most often seen in children, more males than females. The onset of the disease is rapid, with obvious prodromal symptoms, chills, high fever, headache, sore throat, joint pain, general discomfort and other systemic toxic symptoms. The skin lesions are often widely distributed all over the body, as edematous erythema, blisters, blisters, hemorrhages and petechiae. Self-perceived pain. Mucosal damage occurs early and severely, with extensive involvement of the oral, nasopharyngeal, ocular, urethral, anal and respiratory mucosa, with extensive erosion and necrosis and corresponding symptoms, such as interference with feeding, difficulty in urination and defecation, keratitis or ulceration, scleritis, iritis, and can lead to vision loss or blindness. It is often accompanied by bronchitis, pneumonia, peptic ulcer, myocarditis, and liver and kidney damage. Related tests: increased erythrocyte sedimentation rate, increased anti-“○” value, positive C-reactive protein, increased white blood cell count and eosinophils. If the kidneys are involved, proteinuria and increased urea nitrogen may appear. 4.How should catarrh be treated? A: Internal treatment: cold and dampness blocking the ligament evidence: every winter onset, the lesions are erythematous edema, dark red or purplish red, in the face and hands and feet, shaped like frostbite, edema is obvious, fear of cold, aggravated by cold, with heat is reduced, urine is clear and long, the tongue is light, the coating is white, the pulse is sunken and tight; treatment is based on warming the meridian to disperse cold, activating blood circulation, the formula is used Gui Zhi Tang and Angelica Sinensis Four Reverse Soup plus reduction: Gui Zhi, peony, Angelica Sinensis, Hossein, Moutong, Licorice Dampness and heat accumulation evidence: mostly occurs in summer, the lesions are erythematous, papular rash, wind mass, bright red, may have more blisters, or oral erosion, vulva wet rotten, itching and pain, may be accompanied by fever, dry throat, aching joints or body tiredness, dullness and vomiting, urination and constipation, red tongue, yellow greasy coating, smooth pulse; treatment to dispel wind and clear heat, detoxify and relieve dampness, the formula is based on elimination of wind and heat, combined with gentian diarrhea liver Tang plus reduction: Angelica, Radix et Rhizoma, Fang Fen, Cicada, Zhi Mu, etc. The treatment is based on clearing heat and cooling the blood, detoxifying and relieving dampness, and the formula is based on the combination of clearing plague and defeating poison drink and guiding chi-san plus reduction: raw gypsum, raw earth, water hyacinth, gardenia, orris, scutellaria, scutellaria, red scutellaria, red peony, red peony, red peony, red peony, red peony. The formula is based on the following: gypsum, raw earth, water hyacinth, gardenia, orris, scutellaria, scutellaria, Zhi Mu, red peony, xuan shen, forsythia, bamboo leaf, licorice, tannin, mouton, and bamboo leaf. External treatment: If the rash is mainly erythema, papule, blister and vesicle, use San Huang lotion to apply externally; if the blister and large blister have exudation, use cold and wet compress with decoction of Amaranthus, Phellodendron and Diyu for 20 minutes each time, 3-4 times a day; if the oral mucous membrane is damaged and ulcerated, use Pu Huang liquid to gargle and blow with green blowing mouth. In addition, in mild cases, antihistamines, calcium, vitamin C. In severe cases, the application of high-dose corticosteroids should be considered and care should be strengthened to maintain water and electrolyte balance, and appropriate antibiotics should be selected to prevent and control secondary infections. 5.What should patients with catarrh pay attention to in their lives? A: Patients with catarrh should try to avoid causative factors, such as actively controlling infection and stopping the use of allergenic drugs; those with cold and dampness should pay attention to keeping warm and avoiding cold stimulation; avoid eating spicy and fishy hair products, smoking and alcohol; those with severe cases of skin blistering and erosion should strengthen care, visit the doctor to change medication at the skin lesions in a timely manner, and pay attention to the disinfection and replacement of bedding to prevent infection.