Some painkillers are anti-inflammatory and can help reduce pain as well as swelling. However, avoid aspirin and ibuprofen, as they may thin your blood and make the bruise worse. Arnica is an herb that reduces inflammation and can help reduce the appearance of bruises quickly. It is available in cream or gel form at most drug stores. Apply a coating to the affected area twice daily until the bruise goes away. Apply a coin-sized amount of vitamin K8 to the injury when you first get a contusion. This can help keep a bruise from forming or becoming quite so dark. If you have the stomach for it, and you can find a holistic medicine supply store that sells live leeches, you can place a live leech directly on the bruise. It will suck the blood off the top layer of the bruise immediately. Because the leech's saliva is somewhat numbing, you won't feel any discomfort during this process.

How would you rephrase that briefly using Chinese?
服用扑热息痛或布洛芬，但切勿服用阿司匹林。 每天涂抹山金车软膏或凝胶。 在皮肤淤青后立即涂抹外用维生素K8。 让水蛭吸走淤血。