my brother is suffering from back pain for the last 2 months...doctor told he has Ankylosing Spondylitis (AS)...he gave medicines for 1 month such as Folitrax 7.5mg TAB, Salazar, HCQS TAB, Premisol 6mg, Rekool-D, Vorth-TP 50mg... I want to know about the disease and whether it can be cured or not?also indicate the use of above medicines and side effects...?thanks.....!