I have a nine year old cow with a three month old calf at side. After a sudden freeze, she started limping on her left front foot. It was swollen between the hoof and fetlock. I put her in the barn with the calf, and started grain feed and hay with minimal dose bute for the inflamation, there is no sign of a foreign object in the hoof, no sign of temp. the swelling has decreased a little after three days. I can't get a vet to come because of the remoteness, so I am forced to handle myself. Should I start an antibiotic like Pen g or La200? She is tolerant but not friendly since she is separated from the herd, so I try not to get too confined with her.. any suggestions would be greatly appreciated...