Yes, most of the anti  acne creams currently on the market work well, providing you use them according to the instructions given. While they may not actually cure you from acne, they can minimize the symptoms, and lessen the amount of acne that you have.  While there are some side-effects, they are not that serious for most people.

Acne is actually caused by a bacterial infection of the skin pores, which is worsened by hormones. When these infections occur they will be manifested as blackheads, whiteheads, pimples. Severe cases of acne can cause permanent scarring, which is why it is good to try to control it before it becomes too severe.

Anti acne creams usually have ingredients in them that help fight against acne in different ways. Some acne creams have a combination of ingredients. Most creams will either kill the acne producing bacteria, or break down and cleanse the material that is clogging the skin pores.  Common ingredients used in creams include benzoyl peroxide, resourcinal, salicylic acis and sulphur.

Benzoyl Peroxide is effective in killing bacteria, and it also hinders oil production by the sebaceous glands in the skin.  The sebaceous glands are responsible for secreting oil that keeps both our skin and hair moisturized. Unfortunately, when these same oils are trapped in the pores, bacteria cause blackheads, whiteheads and pimples to form.
Resourcinal is very  helpful in cleaning out the pores, by actually breaking down the hardened pus that resides inside.

Salicylic acid does much the same as Resourcinal, in cleaning out the blocked material inside the pimples.

Sulphur, likewise, is effective at dissolving the material that is found inside pimples and blackheads.

So, as you can see, most of the acne creams is effective at both killing the acne producing bacteria and breaking down the material inside of the pimples.

Sometimes, some of the creams cause the skin to become irritated or reddened, and if someone is sensitive it can lead to quite severe burning and itching as well.  Side-effects vary from person to person, and while one cream may cause side-effects in one person, it can oftentimes be fine for another.

While it would be great if applying acne cream would cause acne to disappear and become acne free in 3 days or less, unfortunately that is not the case.  Usually it takes anywhere from one to two months for the cream to work well.  Of course, it is also important to help your body heal by making sure you eat well and keep your face clean and free from excess oil.

Most anti acne creams can be bought over the counter, either singly or in combination with other products that all make up an acne remedies set. If you have severe acne, it is recommended that you visit a dermatologist, for a thorough assessment.