I have poison ivy on the tip of my penis and i don't know what to do. what can i use to cure it?

Loving care: You can try calamine lotion to keep it dry, and Benadryl (diphenhydramine) over the counter for any itching. Good luck.

Here are some ...: If indeed related with poison ivy and not emergent, you may have two options to take: First, do nothing and let nature run its course, but you have to endure it; second, take oral Benadryl (diphenhydramine) and apply topical 1% Hydrocortisone cream twice daily lightly after gentle cleansing and drying. But, if the condition fails to evolve and resolve as expected, see Doc timely. Best wish ...