A 42-year-old man applied to a hospital 10 minutes after he got stung by a bee and complained about face edema and difficult respiration. Objectively: Ps- 98 bpm, AP- 130/80 mm Hg. A doctor on duty injected him 1 ml of 1% dimedrol solution intramuscularly and recommended to apply to his local therapeutist on the next day. What tactics of treatment should be chosen for this patient?