Feed your doxie a quality dog food and limit treats. Quality dog foods list meat as the first three ingredients. Avoid dog foods that contain meat byproducts; you don't want him eating feathers, beaks and ground bone. Because your doxie is susceptible to herniated disks, quality dog foods help keep him slim, since there are no fillers in the food. You do not want your little wiener dog to become overweight and risk a herniated disk because of the extra strain placed on his back.
Avoid letting your doxie jump on the furniture. It could put stress on his back. Place a ramp for him near the furniture you don't mind him lounging on with you.
Carry him up and down stairs. Your dachshund is capable of climbing up and down stairs, but you want to limit any chance of causing or aggravating any disk problems.