As home remedies go, this one is fairly benign. I doubt highly that there is any difference between soaking in Epsom salts and warm water, especially if the goal is to bring an abscess (infection) to a head. When people have a stye (an infected eye hair follicle), the treatment is warm compresses to the affected eye. Likewise, when there is a small abscess or pustule or furuncle, the treatment is warm compresses, soaks, showers or baths. Bottom line is that this is likely harmless, but unlikely helpful above and beyond the warm water part.