While piles (hemorrhoids) cause local discomfort, they typically do not cause fever or body pain. These symptoms suggest a potential complication, such as an infection, a perianal abscess, or a thrombosed hemorrhoid. I strongly advise against self-medication and urge you to consult a doctor immediately for a physical evaluation. For temporary relief of the fever and pain, you can take Paracetamol. Warm sitz baths can also help soothe local discomfort. However, because you have a fever, a professional examination is crucial to determine if antibiotics or specialized treatments are required. Please seek medical attention promptly.