Another update and good news this time. The vet admitted at last that Radis should be treated for his allergic reactions, not just the symptoms of COPD and changed his medicine to antihistamines. Also, fitoterapeuthic/herbal medicine is being given to cleanse his liver. He hasn't coughed almost at all (he had started to again after switching off the oats) for several days now, breathing is normal. We are hoping for the best now. And his teeth will be floated this monday.