My 5 month old pup was at boarding for a week and we picked him up last Sunday and that evening started sneezing with a light green/yellow mucus discharge coming out which has continued along with general nasal discharge/stuffiness. He's fully vaccinated and is acting generally normal with slight changes. Occasionally has a hacking cough (like trying to cough up mucus) sometimes snorts like he's clearing a stuffed nose, occasional eye discharge, maybe slightest drop in energy (energetic to begin with), and less interested in kibble (wetting it or mixing with wet food and he eats it up). The vet last week thursday thought it was an upper respiratory infection, which sounds right. He hasn't gotten much better nor worse in almost 2 weeks, but I'm wondering what I should expect with this type of illness in dogs. For humans I'm used to slow but steady improvement, certainly within a week or two, not sure if dogs take longer to recover. The vet said to call if no improvement by the end of this week, but I'm wondering if I should just wait a bit more. I have been walking him maybe 20-30mins once a day and he seems to do fine and enjoying it, but not sure if I should be resting him more. Appreciate any thoughts or suggestions.