If you are someone who suffers from recurrent boils in this area then do please go and see you GP because it may be that you need a cause of antibiotics and an antibacterial wash. If this is a recurrent problem then we often prescribe a longer course of antibiotics to try and break the cycle.
This is because a giardia infection interferes with digestion and inhibits absorption of nutrients from the diet. It can also damage the lining of the intestine. In fact, this particular parasite is at the root of many cases of chronic GI inflammation in dogs and cats.
Giardiasis is a diarrheal disease caused by the microscopic parasite Giardia. A parasite is an organism that feeds off of another to survive. Once a person or animal (for example, cats, dogs, cattle, deer, and beavers) has been infected with Giardia, the parasite lives in the intestines and is passed in feces (poop). Once outside the body, Giardia can sometimes survive for weeks or months.