Located in the heart of Midori, Tsukuba City, Ibaraki Prefecture, Gajumaru Clinic Tsukuba is a medical clinic specializing in internal medicine, respiratory medicine, allergy, and infectious diseases. The clinic director holds three specialist certifications from the Japanese Society of Internal Medicine, the Japanese Respiratory Society, and the Japanese Society of Allergology, enabling comprehensive care from general internal medicine to highly specialized respiratory and allergic conditions. One of the clinic's notable features is sublingual immunotherapy for hay fever and dust mite allergies. This constitutional therapy aims for long-term symptom remission and has garnered attention as an approach distinct from pharmacotherapy. Additionally, the clinic provides specialized treatment for severe asthma and severe atopic dermatitis using biological agents such as Xolair, Nucala, Fasenra, and Dupixent, as well as patch testing to identify causative substances like metal allergies. The facility is well-equipped with diagnostic instruments including digital X-ray, CT, ultrasound, respiratory function testing, fractional exhaled nitric oxide testing, and electrocardiography. Infection control measures include dedicated fever clinics and isolation rooms for febrile patients. The clinic offers English-language support, accepts credit cards and electronic payments, and provides parking and barrier-free facilities.