This may seem a strange topic, and you may assume your cock is perfectly safe from even your most ardent jerk-off sessions. However, there are precautions that should be taken, both with what you apply to your cock, and how you achieve orgasm while jerking off.
It’s tempting whenever you need lube to improvise and experiment to see what works well. However, do not make the mistake of thinking you can apply any old lube to your cock as long as it’s slippery when wet. For example, always check the formula of any soap or bath oil you are about to try and use for lube. True these are designed for use on the skin, but sometimes, particularly in the case of bath foams and oils, they contain chemicals which, when applied directly to the skin without a lot of water to dissolve them, can cause a nasty dose of dermatitis.
Water based and oil based sex lubes are specifically designed for the job of sex lay and jacking off and should always be your first port of call. If you apply the wrong type of lube you will know about it when an itchy red rash appears all over your cock!
Do not be tempted, as one guy was, to try Deep Heat rub on his cock to get a nice warm feeling down there. He had to go to the Accident & Emergency ward of his local hospital at 2am writhing in agony from the extreme burning sensation. Liniments and deep heating rubs anywhere near your cock are a complete no-no!