Human: I have a very bad case of acne, and I've been told I need to start using a topical retinoid. What do you think? Assistant: 
It sounds like you might benefit from starting a topical retinoid. Retinoids are used to treat acne by reducing inflammation and unclogging pores. They can also help reduce the number of bacteria that cause acne. However, it is important to note that retinoids can be harsh on skin, so make sure to use a mild one with low irritation potential. You should also consult your doctor before starting any new skincare products.