Yanai Internal Medicine Clinic, located in Dogo Yunomachi, Matsuyama City, Ehime Prefecture, is a specialized internal medicine clinic treating general symptoms such as fever, headache, dizziness, cough, nausea, vomiting, abdominal pain, and diarrhea. In addition to treating various infections like colds and influenza, gastrointestinal disorders like gastroenteritis, gastric and duodenal ulcers, and reflux esophagitis, as well as arrhythmia and insomnia, they feature prescribing herbal medicine tailored to each patient's constitution and symptoms. They approach lifestyle diseases, allergic diseases, atopic dermatitis, menopausal disorders, cold sensitivity, and anemia with herbal medicine, and perform regular health checkups and various vaccinations including adult pneumococcal, rubella, and chickenpox. As a designated family doctor with functional enhancement billing, they provide health management consultations, referrals to specialist physicians and medical institutions, consultations on nursing, health, and welfare services, after-hours phone support for continuous patients, and callback services. They bill for outpatient infection control enhancement, fever and other infections, community comprehensive care, and lifestyle disease management fees I & II, and support prescriptions over 28 days and refill prescriptions. They respond to sudden changes in patients undergoing treatment at affiliated long-term care insurance facilities such as Special Nursing Home Dogo and Care House Dogo, and are equipped with English and Korean support, parking, and barrier-free facilities.