my little poodle keeps coughing;..

Brief：
he had blood taken and he had bladder infection, i brought him again to a diffrent vet and said he;s o.k.. he had a seisure 2 days ago and i thought t.. 

he had blood taken and he had bladder infection, i brought him again to a diffrent vet and said he;s o.k.. he had a seisure 2 days ago and i thought that was it; i;ve been giving him baby cough syrup and it helps alittle.he sounds like he;s going to cough his guts up,,, please does any one know of dogs chocking and coughing so much?it;s not kennel cough

There's a chance that the cough is due to his heart problem- if his heart is enlarged it may be putting pressure on his airways. He may also have pulmonary oedema (fluid on his lungs, as Erica M mentioned) because of his heart.

If he's got a moist cough, don't give him more cough syrup without talking to a vet (don't give human meds without a vet's advice anyway), as you'll be stopping him from coughing up any fluid.

I think it's time to see a different vet. It sounds as though he's likely to be distressed by this and probably you are too. If they want to put him on lasiks, ask about his blood results.it's a good idea to check the state of his kidneys before putting him onto diuretics or heart meds for that matter. If he needs the meds, he needs the meds, but it's nice to know what you're dealing with. ask for a referral to a cardiologist vets. Heart disease causes coughing. im not a vet but a vet nurse. Get it ckd. I just took my Pom to my vet last week She was coughing + she had had a seizure. My vet checked her out good(been going to him 20 yrs) He Dx her with-congestive heart failure. Holding the head up to breath b/c the lungs has fluid in them.