Bruises taking forever to heal

So i'm 26 and at the beginning of May I fell really hard scraped my knee up pretty good and my shin. I also bruised my thigh a big bruise that took forever to show up. Everywhere that hit bruised and it stayed black and blue and purple for about 6 weeks. 3 weeks ago My puppy tripped I fell landed on my knees. They are still black and blue and purple and red and tender. They also showed up really quickly. Now I am an asthmatic and I just switched from Symbicort to breo. singulair for asthma and Lexapro for anxiety. I used to take baby aspirin a couple years
Ago so I know it's not that. I have had to be on Medrol dose packs 3 times this year for the asthma. So are the meds the cause of the bruising taking forever to heal or is it something else? What should I do? I don't know if it's something I should worry about or not. Any ideas on what's causing this and now to get the bruises to heal better would be great. Thanks

Bruises taking forever to heal