My Constant Companion 9yr Lab Diagnosed With Pyometra 2 Weeks

my constant companion 9yr lab diagnosed with pyometra 2 weeks ago. she was very sick and given 2 heavy antibotics & pain meds as she would moan constantly. i am retired man with no money. in the last several days she has bounced back to normal happy and playing. we may be ok. will she get it again??? can i just get a normal spay in a few weeks when i can save up the money??? thanks... johnny~~~