I like the sun, but some people rebound from sun exposure. ie their acne clears up, but then comes back stronger.
the sun is worse for skin cancer (uvb-causes cancer, as well as UVA-more photoaging)
tanning beds are somewhat better (only having UVA), however, skin cancer and melanoma risks do go up.
see your dermatologist and ask for clindamycin solution. works great.
if you cannot afford to see your derm, get some benzoyl peroxide product.