HELLO DOCTORS!!I Am 35 Yearsold And I Have HLA B27+ve

HELLO DOCTORS!!I am 35 yearsold and I have HLA B27+ve and as per treatment found having Ankylosing Spondilytis, 7 years back started hip joint pain, last 2 years iritis at right eye, chest pain 2 times, left hip joint pain is recursive in almost every 6 months, Rheumatologist recently suggested to have Sazo 500 twice daily associated with folitrax once in a week.Sir I am 35 years old what happen if I take it daily till end? i am feeling nervous to take the medicine even-if I don't have the pain.