Swelling, Pain In Lower Back After Falling. No Help With Medicines. Saw Coagulated Blood Before. Suggestions?

Hello, my name is jemima. im 31 years old. im married and have 2 children, 6 and 7 years old. i weigh 180 lbs. i fell down on the 8th february, from a terrace which has 3 stairs. i got much pain from my lower left back, with swell very much. i put arnica gel on it, and ice. i thought it would be ok. but no. 1 week later, i went to hospital. i made x rays. they saw a little failure- i don t know how to say that in english. i mean no facture. the doctor gave me antbiotics. a week later, i went on my rendez vous. swelling same size. she told me it would take time to flatten, and gave me calcium carbonate and vitamin b complex. today i went again to hospital for my rendez vous. another doctor consulted me and said there is coagulated blood and need to be removed. he said i should make an echography, then go back towards him. i haven t do it yet. my questionis why i have this swelling all this time- 1 month. it still hurts but not like the first day i fell. two doctors say two different things. on the first days i saw the coagulated blood. it was green black in colour, but now i see nothing only the swelling. please help me to understand my situation. thank you jemima