My mother have face difficulty to take braeth and feels pain in opposite side of left lung. Dr. Gives her to medicine for 7 days but the problem is still same after 7 days my mother again visit the dr. and dr. Tells her for x-ray and after saw x-ray dr. said their is water in left lung and same time dr. Said for ultrasound. After saw ultrasound report dr. Says all is alright and gives medicine for 15 days and dr. Said u will be alright soon. I can’t understand why dr. Said firstly their is water