Chickens have the sniffles?  Wheezing and  Coughing?   Before booking an appointment with the vet or running out to  buy antibiotics - try this old remedy.  

VetRx Poultry Remedy aids in the treatment of respiratory problems; as well as scaly legs and eye worm. Product contains  Canada balsam, camphor, oil origanum, and oil rosemary, blended in a corn oil base. For internal and external application.   It is very effective and easy to apply.

2 oz