When a dog gets sick, it is the most heartbreaking thing for parents. When a dog gets sick, we must first understand the cause of the disease so that we can provide timely help to the dog. Otitis externa is also a relatively common condition for Bichon Frize dogs. Disease, other dogs may also suffer from this disease, so we parents can also understand, so how should dogs be diagnosed and treated after otitis externa?

Pathological analysis

1. Cause of disease. Mechanical injury and bacterial, fungal and parasitic infections are several important causes of otitis externa. Mechanical injuries include trauma to the external auditory canal and irritation and even damage caused by foreign objects falling into the external auditory canal. Infection may be caused by a variety of factors. Common causes include mechanical damage to the external auditory canal, excessive accumulation of earwax, and inadvertent inflow of bath water into the ear canal causing excessive moisture and overheating. Atopic dermatitis and seborrheic dermatitis can also cause otitis externa.

2. Clinical symptoms. It is characterized by loss of appetite in sick dogs, frequent shaking of the head or scratching the ears, resulting in scratches, abrasions, bleeding or hematomas on the ear shells. One-ear disease suffers from droopy ears. In the early stage, the ear shell and external mouth of the ear canal are red and swollen, the ear canal is red and swollen, sensitive and painful, there is a lot of dirt in the ear canal, or there is exudate on the surface of the external auditory canal. In severe cases, the ear canal is extremely swollen, the epithelium is ulcerated, and the ear canal discharges light yellow serous fluid to a deep level. Purulent otorrhea. Otorrhea adheres to the hair at the base of the ear. After the disease becomes chronic, the ear shell becomes red, swollen and ulcerated due to scratching, the ear secretions become thick, the subcutaneous tissue of the ear canal mouth proliferates, the ear canal cavity becomes narrowed or even completely blocked, and hearing loss occurs.

Diagnosis

1. Understand the medical history. If one ear suddenly develops, you scratch the ear desperately, foreign objects fall into the ear, and water flows into the ear when taking a bath.

2. Local inspection. Check the type of secretions from the ear shell and the outer mouth of the ear canal, the size of the ear canal lumen, changes in the inner membrane and periosteum of the ear canal, use an otoscope to examine the ear canal, and perform ear canal irrigation when examining the deep part of the ear canal.

Prevention

1. With the improvement of people's material living standards, there are many people walking and playing with dogs on the street in their spare time. In order to prevent the occurrence of canine otitis externa, be sure not to let foreign objects fall into the ears when you are happy. At the same time try to avoid external damage.

2. Regularly deworm the dog and pay attention to hygiene, but when bathing, two pieces of suitable cotton should be blocked in the dog's ears to prevent water from flowing into the ears and causing otitis externa.

​Treatment

1. Clean the ear canal. Use 0.1% Xinjiazil and rinse at 37-38°C. The liquid entering the ear canal is allowed to flow out or be sucked out. Rinse repeatedly until the periosteum can be seen clearly with an otoscope. Use small tweezers to remove large pieces of earwax or foreign matter that cannot be flushed out. take out.

2. For local usemedicine. Rinse the ear canal and apply antibiotic ointment and prednisone ointment deeply into the ear canal. For fungal otitis externa, apply antifungal ointment deeply into the ear canal, such as Dixonine ointment, until the scales in the ear disappear.