I suggest you take probiotics to improve the gut flora
and overcome
infection. Usually this helps, as often stool is the cause of urinary
infection.
Recurrent or chronic fever is seen in typhoid, tuberculosis, hepatitis, SLE, rheumatoid arthritis, Polyarteritis nodosa (PAN) and other auto immune disorders, UTI, drug fever, sinusitis, glandular fever, otitis media, IBS, HIV, STDs, endocarditis, parasitic infestations (like malaria), fungal infections, lymphomas and other cancers etc.