Does using over-the-counter topical antibiotics (such as walgreens triple antibiotic ointment® or neosporin®) reduce the effectiveness of birth control pills?
No, they do not. Unlike certain types of oral antibiotics, topical ones do not affect the efficacy of birth control pills.
No. No theses are topical treatments and should not have any effect on birth control pills.
Just about equal. Personal preference.
No. This is unlikely to help. You need to determine the cause of the skin problem. See your family doc or a dermatologist.