Antibiotics work by killing bacteria that contribute to the cause of acne. They also have a direct effect of reducing inflammation. Antibiotics usually work well to clear inflamed acne spots, and any surrounding skin inflammation.

However, antibiotics have little effect on unplugging blocked pores (which you can see as blackheads and whiteheads). So, if you only have mild acne with just blackheads and whiteheads, you are better off using a topical treatment that unblocks pores. If you have a lot of blackheads and whiteheads as well as inflamed acne spots, you may be advised to use a topical treatment such as benzoyl peroxide in addition to taking an antibiotic tablet.

Source: partly google search

Good

Keep ur stomach clean always and also drink lot of water and clean the face many times as more natural skin oil is one of the main reason

Pls dont fall in the trap of any medicines, creams, ointments etc. pimples are due to harmonal changes in the body. as they come naturally, they vanish naturally. do not even try to scratch them. it will leave permanent scars on your face. leave them as it is. may look some what odd, but bear with it. time is the best medicine. wash your face regularly with cold water. eat and drink lot of water, juices, fresh vegetables. dont eat too spicy food. that is my sincere advice.

THERE IS NO REMEDY IN THE WORLD FOR ACNE / PIMPLES.