Located in Suita City, Osaka Prefecture, Hosoi Gaku Children's Clinic is a pediatric-focused medical facility that offers a wide range of medical services, including daily outpatient care, vaccinations, and specialized allergy treatment. In addition to addressing child-specific infectious diseases such as erythema infectiosum and hand-foot-and-mouth disease, the clinic provides influenza and human papillomavirus (HPV) vaccinations. Furthermore, it offers professional treatment for allergic rhinitis through sublingual immunotherapy for dust mite and Japanese cedar pollen allergies. The facility features barrier-free accessibility and includes a parking lot, with English-language services available. The clinic is closed on Thursdays, Sundays, and national holidays, as well as during specified periods including year-end and New Year, fiscal year-end, and summer. The schedule of closures is announced through in-clinic notices and the official website.