Chronic gastroenteritis may manifest with symptoms such as stomach pain, bloating, alternating constipation and diarrhea, and sometimes systemic symptoms like fatigue and weight loss. Treatment can include antibiotics, antacids, and other medications, along with attention to dietary regularity and avoiding cold, greasy, and spicy foods.

Frequent sniffing may be a manifestation of chronic inflammation caused by allergic rhinitis or pharyngitis. It is recommended to seek medical attention promptly for diagnosis and treatment.