Hello everyone! Who has encountered such a problem and knows what it i…

Hello everyone! Who has encountered such a problem and knows what it is. After childbirth on the forearm (forearm) and on hips in front there were some pimples. They don't itch. It's been two months already, but they haven't gone away. What is this and what should I do so that it goes away? This didn't happen before childbirth. On the hips there are a lot of them.