I keep this as part of my essentials in my bird first aid kit especially if there has been a lit of rain and wind. As always if you are unsure on what's wrong or what to use seek help from a vet.
Used this product for young poultry suffering from CRD (Chronic Respiratory Disease) to which I was only getting small samples of Spectovet each vet consultation which was costing a fortune in this horrible wet weather. A friend suggested Oxymav B to try and I can get a 1kg tub to treat birds suffering on a cheaper budget plus it works like a charm. Birds actually enjoy the taste I've found (happily drink it).
Product was available for collection the next day and it started working immediately - happy customer with service and product
Very fast postage, great product!
I have found Oxymav B to work very effectively with my sick chooks