Examination of purulent auricular perichondritis reveals redness and swelling of the auricle. Auricular perichondritis (auricular chondritis) can be categorized as plasma or purulent. The lesion is a serous exudation (plasma) or pus formation (purulent) between the cartilage and the perichondrium. So how is auricular erythema differentiated from plasma chondritis? The following describes the main differentiation from plasma chondritis. Plasmacytosis often only auricle limited swelling, elasticity, not red, no obvious pain, some localized swelling, burning and itching sensation, puncture can be extracted yellowish plasma fluid, culture without bacterial growth. Suppurative auricle severe pain, examination of the auricle can be seen red, swollen, obvious pressure pain, fluctuating sense, some broken out of pus. 1, this disease is important in prevention, after the auricle trauma, must be timely clear, to prevent infection, acupuncture or auricular acupuncture treatment must be strictly sterilized, must not be careless…. Pay attention to hygiene before the disease, especially children. Where there is purulent otitis media, ear boils, baby eczema, should pay extra attention to the local clean and dry, keep the ear and its surrounding clean, and be careful not to pull out the ear. 2, both after the disease, do not wash. If it is dirty or scab accumulation, you can use vegetable oil to rub it first, and after it is loosened, then use gauze or sterilized soft paper to wipe it gently. 3.Re-check the treatment on time. 4, avoid scratching when itching, if necessary, soak some salt water, drop on the itch. Its concentration to be able to achieve the standard of itching. If it is a child to prevent him from scratching. 5, during the disease, avoid alcohol, spicy foods (such as onions, garlic, leeks, chili peppers, pepper, mustard, red, ginger, curry), fishy things, freshwater products, seafood. 6, bathing, haircutting, bath body, pay attention to prevent sewage into the inside, in the hair washing, swimming before you can use special rubber plugs or clean cotton balls to block the external ear canal. 7, after the disease prohibit swimming. 8, avoid all seafood fresh hair, squash, mustard, snow red and other foods.