I think i might have a benadryl (diphenhydramine) addiction. what should i do to stop?

Seek help: Discuss it with your healthcare provider how you can get off this addiction you have to have the will and determnation to do it it may be difficult to go cold turkey, and i usually recommend a step down approach, you have to calculate how much of the drug you are cosuming daily, and slowly at your pace reduce the dose every 2to3 days.It may take few weeks to few months but it will work.