Prickly heat and eczema, although both are skin-related diseases, have significant differences. Firstly, looking at the causes, prickly heat mainly results from excessive sweat due to overheating and high temperatures which cannot escape. Eczema, on the other hand, is caused by a variety of internal and external factors such as allergies, seasons, and weather, leading to an allergic skin disease. Regarding treatment, prickly heat can be addressed with prickly heat powder or some cooling ointments, which often result in a cure. In contrast, eczema is typically treated with antihistamines or astringent medications. (Please use medication under the guidance of a doctor)