He has battled crd since he was young and just a few months ago started having seizures which I have seemed to control but now he has started holding his head up and swallowing just like he would when he is taking a sip if water. I opened his beak and I can see what looks like foam in his throat. He doesn't have a runny nose, no sneezing and he is eating and walking around but when I pick him up it sounds like his lungs are congested. I tried tylan 50, didn't work. I tried duramycin, didn't work. I have been giving him vinager water, garlic and oregano oil. But still has that foam and congestion. Any thoughts?