Have reoccurring bladder infection, very severe.i went see the physician i get antibiotics. referred to specialist found nothing what the next step?

Consult a urologist: Seek another urological evaluation to confirm the cause of your “bladder infections”, identify the infective microbial agent by urine culture/sensitivity testing and make sure that ( if you have a bacterial infection ) you take the appropriate antibiotics (in right dosage and for right duration) which the identified bacteria are sensitive to . Routine bladder hygiene and other tests may be needed