Summary of case history,　Chief complaint: Dry mouth, dry eyes for more than 1 year, aggravated with less abdominal pain for 3 months.History of present disease: The patient had dry mouth and dry eyes without obvious causes 1 year ago, and the hard food needed to be taken with water. After applying erythromycin ointment on the eye, the patient felt that the symptoms were not alleviated significantly, and no standard treatment was given. Three months ago, after infection with the novel coronavirus, the patient had aggravated dry mouth and dry eyes, accompanied by less abdominal distension and pain, and lost 20kg in weight. He was admitted to a local hospital and diagnosed as epididymitis, which was not treated. Subsequently, the patient presented to our hospital in March 2023 with progressive aggravation of abdominal pain accompanied by lymph node enlargement throughout the body. He is now referred to our clinic as "scrofula" (Scrofula) with aggravation of dry mouth and dry eyes and unrelieved abdominal distension. Admission symptoms: dry mouth, bitter mouth, hard food needs water to take, dry eyes, less abdominal distension pain, wandering, fatigue, diet, sleep, normal urine and bowel. Weight loss of 20kg. Admission physical examination showed: tongue light red, white greasy fur, percussion: pulse string slippery. No special past history, denied family genetic history.,TCM diagnosis,　scrofulosis (qi stagnation and phlegm coagulation syndrome).,Western medicine diagnosis,　IgG4-related diseases;Mikulitz syndrome;IgG4-associated nephropathy?IgG4-associated lung disease?emphysema;bronchitis.,Therapeutic methods,　1.Traditional Chinese medicine treatment: oral Chinese medicine treatment: Sini San as the main prescription, plus white mustard seed, Scutellaria baicalensis, cat claw grass and so on (Ruanjian Sanjie, dryness and phlegm resolving medicine). The whole prescription is warm but not dry, cool but not cold, playing the effect of soothing the liver and regulating Qi, dryness and dampness, resolving phlegm, softening and dispersing knots.2.Western medicine treatment: oral methylprednisolone 32mg once a day, regular reduction after discharge; Elamod tablets 25mg twice a day; mycophenolate mofetil dispersible tablets 0.5g twice a day.,Clinical outcomes,　After 3 weeks of regular treatment, the enlarged lymph nodes in the bilateral neck, armpit and groin were significantly reduced. The levels of IgG4, IgE and erythrocyte sedimentation rate were significantly lower than those at admission. Two weeks after discharge, no significant increase was found in the relevant indexes.