Gretella, is this the same Dachshund with the disc problem?

What type of diet do you have your Dachshund on?
The diet should be low in protien, phosphorus, ash and not to high in acidified with increased potassium.

What have you done to flush out the kidneys?

What is the pH level in the blood and urine?

You can look into
* Rehmannia (sheng di huang). This herbal helps with the heart, liver and kidneys.

* Omega-3 fatty acids. This is great anti-inflammatory it will help reduce the inflammation in the kidneys and help with blood flow.