Gingivitis is caused by irritants or poor oral hygiene habits. If medication is administered via intravenous infusion, it affects the whole body and can cause significant side effects, reducing its effectiveness on the targeted area. Generally, the results are not very noticeable, so it is not very effective. Therefore, it is recommended that patients visit a regular dental hospital for a diagnosis to determine the cause. If gingivitis is present, dental cleaning can be carried out to remove irritants from the surface of the teeth to prevent the progression of inflammation, which can lead to loosening or even loss of teeth. If the pain caused by gingivitis is severe, it may be appropriate to use oral sprays, such as sprays for oral inflammation, which can provide effective local anti-inflammatory effects.