<s>[INST] my daughter has a recurring cyst on her buttox she is 2 1/2 now the doctors tell us its staff infection an give us antibiotic an a cream it goes away for a while then keeps returning 4 times in the last 8 months she drinks a lot of milk an eats a lot of dairy could this some how be effecting this if not what should I do I ve disinfected our home an we have all been taking bleach baths directed by the doctor [/INST] Hi Dear,Welcome to HCM.Understanding your concern. As per your query you have  recurring cyst in the buttock. Well there can be many reasons for symptoms you mention in query like bacteria or fungus located on the surface of the skin can cause a boil. Boils are quite common and are usually caused by the bacteria Staphylococcus aureus, the most common bacteria found on the skin. When the hair follicle is damaged by a scratch or other break in the skin, the bacteria is able to move deeper into the follicular tissues, causing an infection and resulting in a boil . If cyst is appearing again and again then there must be other underlying problem like low immunity and diabetic condition . I would suggest you to consult dermatologist for proper examination . Doctor may prescribe antibacterial like cephalexin , clindamycin or erythromycin , anti fungal like fluconazole or vitamin supplement to boost immunity . For now apply warm compresses and eat healthy diet . Hope your concern has been resolved.Get Well Soon.Best Wishes,Dr. Harry Maheshwari </s>