Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain first of all I would like to talk about your problem related to pimples... Pimples can occur due to causes like : -Clogged pores. -Oily skin. -Hormonal Imbalances. -Bacterial infection. -Inflammation -Excess sun exposure etc. On the other hands dark or black spots left on face seems to be due to Post Inflammatory Hyperpigmentation that occurs due to pimples.. As far as using Erytop or Acnemoist Curatio is concerned Erytop is an antibiotic ointmemt containing Clindamycin while Acnemoist is an Oil free nourishing lotion.. Erytop can be used over the pimples as it will help in reducing pimples while Acnemoist curatio can be used for lubrication and nourishment of skin especially those who have acne prone skin as it has oil free.. Therefore if your aim is to reduce pigmentation you should use depigmentation creams and techniques.. You should consult a Dermatologist and get evaluated and for pimples he can advise you to wash your face with Salicylic acid containing facewash.. -Apply topical ointment containing Clindamycin and Benzoyl Peroxide.. -Apply retinoids like Adapelene gel in thin layer on pimples at night time.. -Do cool compresses over face.. -Exfoliate your face twice a week to unclog the pores and remove dead skin.. -You can also apply a sunscreen lotion when exposed to sun.. -Oral Medication like antibiotics like Clindamycin or Minocycline and retinoid like Isotretinoin can also be advised -Avoid oily food.. -For dark spots apply creams containing Kojic acid, glycolic acid and arbutin.. -Vitamin E gel can be applied at night. -Azelic acid preparations are helpful.. -You can also go for treatment like Microdermabrasion and chemical peeling.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.