Hyperkeratosis refers to the abnormal thickening of the stratum corneum, a pathological change in which the epithelial cells on the surface of the skin or mucous membranes become hyperkeratotic and the stratum corneum becomes inflamed and thickened. So what are the dietary contraindications of hyperkeratosis? Avoid eating a lot of spicy and stimulating food. Some patients will eat a lot of spicy and stimulating food to meet their powerful taste needs in order to pursue a stimulating taste. Such as chili pepper, ginger, garlic, mustard, tobacco and alcohol, fish and shrimp, seafood, etc. Excessive consumption of spicy and stimulating foods can cause relatively intense stimulation of the gastric mucosa, prompting it to produce congestion and edema and inducing gastrointestinal-related diseases. This can cause disorders in the functioning of the gastrointestinal digestive system. Spicy food also enhances the absorption of water in the large intestine, resulting in hard stools, constipation and even bleeding. Digestive disorders in the gastrointestinal tract can lead to endocrine disorders and metabolic disorders in the body, which are not conducive to the improvement of the body’s resistance and lead to a high incidence of excessive thickening of the stratum corneum. At the same time, allergy-prone food should be avoided, especially for people with allergies, the ability to sense external substances is very strong, and the chances of allergic reactions are much higher than normal. Therefore, extra caution should be taken.