If you are experiencing irritation and dry skin under the scrotum, there are a few things you can do to help alleviate the symptoms. First, try to identify and avoid any possible irritants that may be causing the irritation. If you are using a new shaving cream, consider switching to a different product to see if that helps. You can also try not shaving that area for a few days to reduce irritation. For dry skin and irritation, using a moisturizing cream regularly can help. Make sure to apply it at least twice a day for 5 to 7 days. Additionally, using a low-potency cortisone cream, like hydrocortisone, can help with itching. You can find this cream at the pharmacy and apply it twice a day for a week, making sure to use it at different times than the moisturizing cream.