A month of treatment is not long enough The contraceptive pill is often given to women with severe acne as it may help to lower natural levels of hormones in the body. It's not surprising that you haven't yet seen an improvement. It takes some time for hormone levels to change, and for the acne to settle. Keep taking it for at least another 2 months before looking for an improvement. Effective treatment, including antibiotics, eventually cure most people Most people will find that, with the right treatment, they can cure or at least control their acne.
Topical treatments help to unblock the pores, remove sebum and promote healing.
One of the best, I think, is benzoyl peroxide - and a lotion containing this chemical should be used regularly. But this may not be enough to control the acne, as you have found out. In that case antibiotics are usually given. Antibiotics may be used topically as a cream, or orally as tablets, which treat the whole body. Several different types are used, often tetracycline antibiotics.