Evaluation the effect of licorice for treatment of coronavirus

INTERVENTION: Intervention 1: Intervention group: In addition to the standard treatment regimen for covid‐19, capsules which have aqueous licorice extract containing 80 mg of the active ingredient glycyrrhizin will be given three times a day for 2 weeks. Licorice capsules are formulated at the Mashhad School of Pharmacy with the ineffective ingredients of Ovisil and Arozil. Intervention 2: Control group: ]n addition to general drugs for treatment of corona, the patients take placebo capsule 3 times a day for 14 days. CONDITION: Covid‐19. ; Covid‐19 disease U07.1 PRIMARY OUTCOME: CRP level. Timepoint: 3 days, 1 week and 2 weeks after treatment. Method of measurement: CRP kit. Lymphopenia. Timepoint: 3 days, 1 week and 2 weeks after treatment. Method of measurement: Cell counter device. Time interval until clinical symptoms improve. Timepoint: 3 days, 1 week and 2 weeks after treatment. Method of measurement: Time of recovery. INCLUSION CRITERIA: Patients diagnosed for coronavirus according to clinic such as fever, cough and mylagia Patients diagnosed for coronavirus according to paraclinic such as lymphopenia and increase of CRP Patients in the range of 18‐65 years old