hi, i m 83, i m suffaring last 2 years copd, i m used last 2 years ipap machine , 2.5 mbar, o2, machine, i tkae pill 1,sodiam , on breez , 3, contifil, 4, roflast, but every month i need to take antebiotic piill , when i tkae antebiotic that time i feel okay, after one month again i feel bad, so i avoid antebiotic , how can i aboid antebiotic, i can i feel bater, every day i used ipap machine 14 hours, plesae halp me.