I have never had a problem with this until the past 5 or so months. Ive always had sex/ jerked off 1-3 times a day with similar methods. For the past 6 months, my skin has been getting sore and reddish which lasts for a couple days almost everytime I do anything. (inner foreskin area and head) I've seen a GP and a dermatologist about this, both cleared me of STDs/infections and said its normal from abrasion... I am wondering what changed to make this happen. Lube helps somewhat, but I've tried many and I don't like the mess/ the feel. Any solutions?