Painless and itchless. It was originally a little bit. I don't know whether it was because I stayed up late these two days and had sex with non fixed partners, but they all wore condoms.
From your description and the pictures you sent, I think there should be no big problem as long as it is not painful and itchy and there is no discomfort. You can observe it temporarily, or wipe the affected area with cotton swab dipped with Iodophor. Don't eat spicy and other irritating foods in the near future. You must pay attention to personal hygiene at ordinary times. Your sexual partner is best fixed
Fat particles grow at the root of the penis, which is not painful or itchy. In this case, it should not need treatment. Generally, there are some symptoms of folliculitis or aseptic rash. In this case, it is OK to pay attention to personal hygiene at ordinary times. Pay more attention to your usual diet and don't eat spicy food.
Avoid repeated scratching stimulation. After the urological examination judges the condition, treat it in time, eat light food, avoid spicy stimulation food, tobacco and alcohol, avoid repeated scratching stimulation, keep the perineum clean, prevent cross infection and the possibility of other complications, and treat symptomatically in time to alleviate the symptoms.