I have the following medicines:triamcinolone 0.1 % cream, clobetasol 0.05 % ointment, and tacrolimus 0.1 % ointment. which can i apply to my nipples?

Depends: If the problem is an itchy rash , then a low-potency cortisone such as Hydrocortisone may be helpful. Triamciolone may also be tried as long as you don't use it for more than a week. Clobetasol is likely too strong. Tacrolimus can be used as maintenance - more to prevent recurrence than as a treatment. Consider seeing a dermatologist to find out what may be causing the problem.