Heartworm treatment can indeed be a challenging time for a dog, as it often involves a process that can lead to discomfort. The treatment itself is designed to be effective in eliminating the heartworms, but as the worms die, they can cause an inflammatory response within the dog's body. This can result in the dog experiencing pain, particularly in the lower back muscles, and may also lead to nausea. Additionally, as the worms die off, they can stimulate the dog's respiratory system, which may cause coughing or gagging. It's important to note that while these symptoms can be distressing for the dog, they are generally temporary and should subside within a few days as the body adjusts and the dead worms are expelled. read more >>

Heartworm treatment often causes pain to spread throughout the dog's lower back muscles and makes the dog feel nauseated. Both symptoms will usually ease in a couple of days. As the worms begin dying off, it is common for a dog to cough or gag.read more >>