Dr. Macrene discusses the skincare trend known as slugging. She explains that slugging involves applying a thick layer of an occlusive agent, like petroleum jelly, over the skin to lock in moisture. Dr. Macrene notes that while this method can be beneficial for individuals with extremely dry skin, it may not be suitable for everyone. She cautions that those with acne-prone or oily skin might experience clogged pores or breakouts as a result of slugging. Therefore, she advises considering one's skin type before incorporating slugging into a skincare routine.