Are Kenalog Injections Causing Too Many Menses?

Hi i am 29 years and i have had vitiligo skin condition since age 18. In March 2011 i was given two kenalog injections and one in April 2011. I menstruated on 26th April and ended on 30th April and then on 4th May 2011 i started menstruating up till now 15th May 2011. My deratologist says it is as a result o the kenalog injection. Will i be okay.