serious effect of left lungs infection

I'm TAHKENG CYNDY SHAMAH AWAN , IM 12 YEARS OLD FROM CAMEROON. LAST YEAR I WAS DIAGNOSED OF LEG CANCER, OESTOSACOMA, I WAS EVACUATED TO INDIA AND MY LEFT LEG AMPUTATED. ON MY RETURN AND FOLLOWING UP WITH KEAMOTHERAPY, I DEVELOPED A SERIOUS EFFECT OF LEFT LUNGS INFECTION, FOR ONE MONTH NOW I CANT...