According to your symptoms, a fungal infection or an irritation might be the reason behind it. The cracked foreskin could result from either the infection or the dryness. The pinkish skin around the anal area might be related. Hygiene is the first thing that must be done to make this area stay clean and dry. Antifungal cream or simple moisturizer may be required. Keep away from strong soaps and wear loose clothes. Drink plenty of liquids and eat a balanced diet to aid the natural healing process.

You might have contracted a fungal infection called ringworm on your privates. Ringworm can be distinguished as a red itchy patch on the skin, which can develop into a dark-colored patch. Due to a fungus, it is caused. Use antifungal cream or powder to get it to go away. Remember to keep the area away from any dirt, moisture, and sweat. Please do not share the bath towels or clothes with anyone as this will help you stay safe from the infections.

You have a dark mark left after a cold sore under your nose. A herpes simplex virus causes a cold sore. The sore is a part of the healing process, but it can leave behind a dark spot. This is the usual case. To help it fade, you can try using a cream with ingredients like vitamin C or kojic acid. Sunscreen use is always the first and essential skincare routine. With time, it should get better. 

Acne occurs when you have these red spots on your face caused by your skin producing too much oil. It's super common, especially during the teenage years. To help, you can use a face wash with benzoyl peroxide or salicylic acid. These can clear up your skin by unclogging your pores.

Either a jock itch or an STI can cause groin itching. Jock itch results from sweat and friction, leading to redness, itching, and rashes. An STI may have similar symptoms but is related to unprotected sex. Use antifungal creams for jock itch and practice safe sex to prevent STIs. Maintaining good hygiene is also important.