How to write sick note for acute gastroenteritis in hospital?

Acute inflammation of gastrointestinal mucosa

The patient has clinical symptoms such as nausea, vomiting, abdominal pain, diarrhea and fever. The Chinese name of this disease is acute gastroenteritis, which is common in autumn and winter, and its occurrence is mostly due to improper diet and overeating; Or eat cold, rotten, unclean food, it is recommended to rest for three days and take medicine for observation.