coughing so hard he throws up--help!

[Guest guest]

My almost 2 year old has a nasty post nasal drip that makes him cough

so hard that he has vomited 4 times in 2 days. He has hardly slept

at all and is so tired. His nose isn't runny and his lungs still

sound ok--it is just gunk in the back of his throat. His lungs have

always been totally clear. He is on guafenisin, antihistimine, cough

suppressant (yes, I know we shouldn't be on it) and and

decongestant. We are trying to give him plenty of fluids, tilt his

bed, and are using an ultrasonic humidifier which has been

disenfected with ozonated water. Any other advice? I just hate

seeing him cough like this.

(mom to Ashton wcf, 11 weeks premature, exclusively g-tube

fed)