A fingernail caught in a door can be treated with oral medication or topical medication. After the fingernail is pinched by the door, the local tissues will be red, swollen and painful, and in serious cases, bruises will appear. It can be treated with topical medication, mainly Chinese patent medicines that have the effect of activating blood circulation and removing blood stasis, which can gradually alleviate the condition. In addition, oral medication can also be taken, you can take oral painkillers, such as Lovenox extended-release tablets, and so on, can also be taken orally with the swelling and blood stasis effect of proprietary Chinese medicines, can alleviate the clinical symptoms. Patients are advised to go to the hospital in time, and the doctor will check the severity of the condition and decide how to treat it. If the condition requires, X-rays can be taken for examination, and the above methods can be used in combination or separately.