Hello dear, welcome to healthcare magic forum. Fever not responding to paracetamol usually indicates a bacterial infection like UTI. Viral fever like dengue usually will respond. Other features suggestive of dengue are significant body ache, head ache, pain around eyes,body rash etc. As the fever is persisting, we need further evaluation to find the exact cause, and treat accordingly. You doctor will guide you. You may be asked for investigations like blood and urine tests. Meanwhile,take bed rest, have a light diet, and drink enough fluids. Hope you will find this answer useful. Wishing for a faster cure, thank you.