Muscle injury. Heal in just few weeks?

I have got muscle injury in chest 8 week ago.My x ray report is normal and certaine and uric acid is also normal.I attached report here.I contacted orthopaedic doctor he said x ray report is normal.He prescribed me pain killer and methycobalamin and pregablin and homeopathic medicine and drops.Can these pain killer and homeopathic heal my injury soon.When I press hard on my chest near my injury it hurts and is tender and sore to touch.Is ut normal to remain tender even after 8 week.I don't feel pain otherwise but sometimes minor pain comes and sone stiffness in bruised muscle and feeling of rope in chest.How long will this injury heal and tenderness last and can these pain killer heal my injury and is it normal to pain for long time as I can see in Google these injuties heal in just few weeks?