It is not uncommon for typhoid bacteria to sometimes be resistant to medications like cefixime. Since you have not improved after five days, please do not self-medicate. Instead, consult your doctor immediately. They may recommend alternative generic antibiotics, such as azithromycin, or suggest intravenous ceftriaxone for a faster and more reliable recovery. Your doctor will likely perform a blood culture test to identify the exact bacterial strain and prescribe the most effective treatment. Meanwhile, ensure you stay well-hydrated with clean water and electrolytes, and get plenty of rest. A quick medical evaluation will safely get you on the right path to recovery.