hi denise.first of all,let me assure you whitehead per se is NOT a dangerous condition with regards to your health.
if its a simple whitehead,you have to understand the opening of your skin pores are clogged with sebum(its natural),keratin(basically dead skin cells ) and bacteria.
i would suggest you use a gentle facial soap and warm water to wash your face each morning and night. Make sure the soap is oil-free so it won't clog your pores.avoid scrub or exfoliations for the time being as it can be harsh on some skin types and may cause scarring.
never try to squeeze them out on your own cause that also will lead to scarring,infection and like in your case .
Pls do try getting over the counter
acne products with
benzoyl peroxide and
salicylic acid and apply them in small dabs after cleansing your face.
In cases that dont work,you will have to try topical
retinoids and/or antibiotics .Keep yourselves hydrated and take a
multivitamin daily.
in normal cases,this would be enough to stay off such whiteheads.
hope i could be of help.good day