Is Tab Ecosprin 75 safe for me?

I met with an accident in which I got my right leg injured. The ortho specialist I'm consulting said that along with bruises on my lower leg and thigh, I also have "Muscle Contusion". During the physical examination, he found the swelling to be harder than usual and thus recommended a Venous Dopplers Test to rule out any chances of blood clots. There were no clots and the doc gave me Tab Altraday for seven days. After seven days, when I visited him again today, he saw improvement but still found the affected area to be  hard. Thus, alongside the antibiotic, he has asked me to take Ecosprin for 10 days as it will make the blood thinner. Is it safe to use Tab Ecosprin 75 for 10 days? Does it haven't any permanent effects/side effects? Is there a natural/ayurvedic alternative?