I have left side ovary1.1cm cyst present. Please tell me which medicine is useful for me, either antibiotics or any other medications.?

Cyst. A 1.1 cm cyst is almost always a physiologic (normal) cyst.
Ovarian Cysts. These are not treated with antibiotics, or with other medications. See your ob/gyn specialist and determine the best course of management. Get better soon.