Hello. I Drank Nitrofurantoin 1 Kapsilu Of 100mg Every 12

Hello. I drank nitrofurantoin 1 kapsilu of 100mg every 12 hours for a period of one month for prostatitis. After nitrofurantoin began to pain throughout the body and in the veins. Vene me spread throughout the body and did a mini aneurysm on the feet and hands of the same on the penis. I pray for the assistance to sprecitiali d is of nitrofurantoin and how can it be prevented.