My dog is coughing a dry cough but foam comes out sometimes. When he is outside and over exerts himself, he coughs more and seems to be out of breath.

Hello, your dog could have an upper respiratory infection, heart or lung disease or tracheal infection. It would be best for your dog to see you vet. They can listen to your dog’s heart and lungs and see what is causing these issues. They will also be be able to prescribe your dog medication to help them feel much better. I hope your dog quickly improves.

My dog who has a heart murmur has been coughing since yesterday. He hasn’t been around other dogs. He seems to bring up phlegm but swallows it. It does this every minute or two when he’s not asleep.

Hello, this could be a worsening of his heart issues or could be an upper respiratory tract infection. It would be best for your vet to see your dog. They can start him on heart medication or antibiotics to help him feel much better

She wakes up and starts hacking in the middle of the night.

This could indicate a number of cardiorespiratory issues including heart disease, tracheal collapse, bronchitis, lungworm etc. It is best to have her assessed by a vet who can listen to her heart and lungs and run any necessary tests such as a chest xray. She may well require some medication to help her.

He has been coughing and hacking for over a week throughout the day and evening. He does have a level 5 heart murmur. I don’t know why he’s coughing so much.

Thank you for your question. His coughing is very likely related to his heart murmur, and a cough can be a sign that he is going into heart failure. It would be best to have him seen by a veterinarian right away, as they can examine your pet and see what might be causing this, and let you know what treatment might help.

My dog suddenly developed a dry hacking cough that lasts for about an hour at a time. She drinks water- but then starts again about 30 mins later. Has been going on for 2 days now

Thank you for your question. There are a few causes possible that might be making her cough. Kennel cough is one, that is a viral disease that is contagious between dogs and causes a cough. Lung disease or heart disease or tracheitis are other causes. If the cough is not getting better, it would be best to have her seen by your veterinarian, as they can examine her and see what might be causing this problem. Once they know more, they'll be able to get treatment for her so that she is comfortable and feels better. I hope that all goes well for her and she feels better soon.