1. The ears have not been cleaned for a long time
If the owner fails to clean the dog's ears, it may cause a large amount of local dirt to appear brown. You can use pet-specific ear cleaning liquid to drop into the dog's ears, gently rub the ear base, and then wipe it with a cotton swab. This can clean the local area and facilitate recovery without the need for medication.
2. Ear mites
It is a common ear canal parasite in dogs. It is mainly caused by local parasite invasion. A large amount of brown secretion will appear, accompanied by itching. If there are a large number of parasites in the ear canal, you need to go to the hospital for relevant examinations and use topical anthelmintics according to the doctor's advice to treat the cause.
3. Atopic dermatitis
It is a common chronic, relapsing, inflammatory disease that can cause dry skin, eczema-like rashes, severe itching and other symptoms without treatment. It may cause local suppuration and yellow or brown discharge. Antibiotic ointments need to be used under the guidance of a doctor. During the medication, you need to drink more water, which is beneficial to the body's metabolism and promotes the absorption of drug ingredients.
4. Otitis media
It is an inflammation that occurs in the middle ear. It may be caused by bacterial infection or ear mites. Symptoms include earache, ear canal discharge, hearing loss, etc. The color of pus is light yellow and brown. You need to use pet-specific antibiotic ear drops as directed by your doctor. When using drugs, you need to avoid handling local secretions and then apply the drug for treatment.
5. Otitis externa
It may be caused by pathogenic infection, which will cause inflammation of the external auditory canal, causing symptoms such as skin redness, pain, and a large amount of purulent secretions, which appear brown. You need to take pet-specific antibiotics as directed by your doctor, and you need toIt is necessary to adjust eating habits and do not feed greasy dog food to dogs, so as not to affect disease control.
In daily life, dog ears should be cleaned and cleaned regularly to prevent bacterial invasion and reduce the chance of illness.