It's normal for children to get this. The face is generally the part of the eyebrows and cheeks near the hair follicles. The weather is hot and sweaty, and there is more oil secretion on the face, which promotes the growth of fungi. When the weather gets cold, it will be fine naturally. Just pay attention next summer! It should be useful to use that Thai essential oil soap, but if it doesn't work, you can use a small amount of antifungal drugs, such as pevisone and dyclonine. Can only go to the hospital to see if it is tinea versicolor!