I have asthma and in the winter when i go running the cold air makes it really painful. should i be on a different medication for this issue?

Probably not: Cold air is a tenacious trigger for asthma - there really is no way to treat it with medications. The only way to get some relief is to cover your mouth and nose with a scarf of cold weather mask. These trap the moisture from your breath, which then warms and humidifies the cold, dry air that you next inhale. Trying to inhale through the nose does the same thing, but is difficult during exertion.