Self-medication of antibiotics is an irrational use of drugs, contributing to microbial resistance, increasing health care cost and higher mortality and morbidity. This study was aimed to assess self-medication with antibiotics without a medical prescription in the community of Libya. This is a cross-sectional study conducted from June to December, 2022 and the total number of participants was 200. The design of the study and sample size were modified according to the proficiency of pharmacists and the medical and non-medical population of Libya. The questionnaire was developed in English and Arabic language and was distributed through social media platforms. The questions were used after a thorough literature search and assessing the validity and reliability. The significant signs regarding reasons for the treatment by self-medication drugs of antibiotics, because of its various drugs of antibiotic by pharmacist (n = 80, 40.0%) and family (n = 90, 45.0%) compare with experience and physicians by used prescription was 13 (06.50%) and significant sings regarding by nasal congestion self-medication of various antibiotics (n = 100, 50.0%). This sign must be practiced based on a previous physician’s prescription. The antibiotics are often self-administered as patient feel that they will save money and time but this can lead to substantial adverse drug reaction, antibiotic resistance, treatment failure and drug-related toxicity. This study respondent's medical and non-medical public of Libya who should be relatively informed and educated about the risk of treatment by self-medication of antibiotics with the development of resistance.