inclusion criteria: * age from 20 - 60 * confirmed covid-19 positive with pcr test . * admitted to mansoura university quarantine hospital .. * fever ≥ 38 * respiratory rate ≥ 20 * myalgia , arthralgia and sore throat . * radiological findings consisting with covid-19 . * welling to participate and able to give fully informed consent. specific inclusion criteria according to the concentration and method :- * inhalation of alcohol vapor driven by oxygen respiratory distress ( dyspnea - orthopnea ) spo2 : 65 - 85 abg : respiratory alkalosis due to dyspnea and tachypnea pao2 / fio2 ratio \> 300 mmhg under the condition in the hospital room (moderate illness). * inhalation of alcohol vapor driven by oxygen in case of ards. respiratory failure . ct : lobar collapse and nodules non cardiogenic pulmonary edema excluded by echo or signs of overload . pao2 / fio2 ratio 101 - 300 mmhg on cpap or vent . ( mild to moderate ards) * ethyl alcohol infusion into the airway pao2 / fio2 ratio ≤ 100 mmhg ( sever ards )

inclusion criteria: * age from 20 - 60 * confirmed covid-19 positive with pcr test . * admitted to mansoura university quarantine hospital .. * fever ≥ 38 * respiratory rate ≥ 20 * myalgia , arthralgia and sore throat . * radiological findings consisting with covid-19 . * welling to participate and able to give fully informed consent. specific inclusion criteria according to the concentration and method :- * inhalation of alcohol vapor driven by oxygen respiratory distress ( dyspnea - orthopnea ) spo2 : 65 - 85 abg : respiratory alkalosis due to dyspnea and tachypnea pao2 / fio2 ratio \> 300 mmhg under the condition in the hospital room (moderate illness). * inhalation of alcohol vapor driven by oxygen in case of ards. respiratory failure . ct : lobar collapse and nodules non cardiogenic pulmonary edema excluded by echo or signs of overload . pao2 / fio2 ratio 101 - 300 mmhg on cpap or vent . ( mild to moderate ards) * ethyl alcohol infusion into the airway pao2 / fio2 ratio ≤ 100 mmhg ( sever ards )

inclusion criteria: - age from 20 - 60 - confirmed covid-19 positive with pcr test . - admitted to mansoura university quarantine hospital .. - fever ≥ 38 - respiratory rate ≥ 20 - myalgia , arthralgia and sore throat . - radiological findings consisting with covid-19 . - welling to participate and able to give fully informed consent. specific inclusion criteria according to the concentration and method :- - inhalation of alcohol vapor driven by oxygen respiratory distress ( dyspnea - orthopnea ) spo2 : 65 - 85 abg : respiratory alkalosis due to dyspnea and tachypnea pao2 / fio2 ratio > 300 mmhg under the condition in the hospital room (moderate illness). - inhalation of alcohol vapor driven by oxygen in case of ards. respiratory failure . ct : lobar collapse and nodules non cardiogenic pulmonary edema excluded by echo or signs of overload . pao2 / fio2 ratio 101 - 300 mmhg on cpap or vent . ( mild to moderate ards) - ethyl alcohol infusion into the airway pao2 / fio2 ratio ≤ 100 mmhg ( sever ards )

inclusion criteria: - age from 20 - 60 - confirmed covid-19 positive with pcr test . - admitted to mansoura university quarantine hospital .. - fever ≥ 38 - respiratory rate ≥ 20 - myalgia , arthralgia and sore throat . - radiological findings consisting with covid-19 . - welling to participate and able to give fully informed consent. specific inclusion criteria according to the concentration and method :- - inhalation of alcohol vapor driven by oxygen respiratory distress ( dyspnea - orthopnea ) spo2 : 65 - 85 abg : respiratory alkalosis due to dyspnea and tachypnea pao2 / fio2 ratio > 300 mmhg under the condition in the hospital room (moderate illness). - inhalation of alcohol vapor driven by oxygen in case of ards. respiratory failure . ct : lobar collapse and nodules non cardiogenic pulmonary edema excluded by echo or signs of overload . pao2 / fio2 ratio 101 - 300 mmhg on cpap or vent . ( mild to moderate ards) - ethyl alcohol infusion into the airway pao2 / fio2 ratio ≤ 100 mmhg ( sever ards )