Ivermectin cream for humans is widely recognized for its ability to treat certain skin conditions, but its role in treating tropical diseases is typically related to its oral form. The oral form of ivermectin is used in mass drug administration programs to control onchocerciasis and lymphatic filariasis, which are prevalent in tropical regions. In contrast, the cream version is generally used for skin-related conditions like rosacea and scabies. It works by killing the mites that cause intense itching and rashes.