Can I eat beef stewed with potatoes if I have a cough?
Generally speaking, it is acceptable to eat beef stewed with potatoes when coughing, as long as consumption is moderate. Here's a detailed explanation:

Beef is rich in high-quality protein, which helps replenish energy expended by the body, strengthens physical condition, and supports the body’s resistance against factors triggering cough. Potatoes are soft, easy to digest, and rich in carbohydrates and vitamins, providing quick energy without burdening the digestive system. This dish has a mild flavor and is suitable to consume during a cough, provided it is cooked with minimal oil and salt and without spicy seasonings. It may also help improve poor appetite.
While eating beef stewed with potatoes, proper daily care should also be maintained. Ensure adequate sleep to allow the body sufficient time to recover. Drink plenty of warm water to continuously soothe the throat and respiratory tract, reducing the frequency of coughing. In addition to this dish, include fresh vegetables and fruits in the diet to maintain balanced nutrition. Keep indoor areas well-ventilated and maintain appropriate humidity. Dress appropriately according to weather changes to avoid catching a chill, which could worsen cough symptoms.