Hello, thanks for your question today! I am Dr. Drew, and I am a licensed veterinarian. I'll be happy to help you in any way I can.
pyoben can cause some stomach irritation if ingested,
so it is certainly possible that this is the cause of the vomiting you have described.
It is best to rub the product in thoroughly, in small amounts, to prevent ingestion as much as possible.
I would only apply as much as can be rubbed in completely, avoid leaving any excess behind,
if excess remains, it can be blotted with a dry cloth, rather than water.
can this condition cause an infection that would require an antibiotic?