Diarrhoea is defined as an increase in stool frequency accompanied by a decrease in consistency. It is not a common side effect of head and neck cancer, but it can sometimes appear after chemotherapy or the administration of certain drugs or antibiotics. It is usually occasional and lasts only a few days. If it is prolonged, consult your medical team.
Because diarrhoea can lead to dehydration, drink plenty of fluids (water, herbal teas, weak broths, low-sugar isotonic drinks) in small sips throughout the day.
Homemade isotonic drink: Mix the juice of two lemons, a tablespoon of honey, a dessert spoon of sea salt and a dessert spoon of bicarbonate of soda in a litre of water. When these ingredients are dissolved, leave it in the fridge until it is cool.
Start with a liquid diet, e.g., rice water, and once well-tolerated, incorporate easily digestible foods such as mashed potatoes and carrots, boiled rice, white fish, or boiled chicken and baked or grated apples.
Boiling, grilling, steaming, and baking in the oven are easier-to-digest cooking methods.
Butter, margarine, lard, mayonnaise, cream, heavy cream, and baked goods, amongst others, are not recommended.
Depending on tolerance, they can be gradually incorporated.
Sweets, fruit nectar, simple sugar or honey, chocolate, sweetened or sweetened drinks, xylitol, sorbitol, etc. are not recommended.