The beach is over, but you notice that along with the color you wanted, some pimples have appeared on your buttocks that you didn't have before. What irritated the skin?

The causes that cause acne on the skin are the same that cause pimples in other places. So it has to do with genetics, normal hormonal fluctuations, stress, diet, change in routine and other aspects of our lifestyle. Also, it happens that acne appears on the lines of underwear or swimwear, but if this happens, just notice and change their material. 

Sweating or being in the sun isn't to blame, however, it's a good idea to wash often as the growth of germs can make your pimples worse. 

So the first step to clearing pimples on the back is to act as for acne on the face: keep the skin clean and dry and make sure you are eating healthy, with a balanced diet.

How to treat them

It is best to use a product that contains salicylic acid, which is advisable because it prevents and treats clogged pores. Also, products containing benzoyl peroxide are advised, but there are some people who may be allergic to this active ingredient. You can understand this if products containing it cause you swelling and irritation.

Salt water is also a solution! Acne develops when the skin pores become infected and consequently irritated and the surrounding area becomes red. Salt water has antimicrobial properties, so whatever the reason for their breakout, the sea would reduce your build-up. If you closed it on vacation, prepare yourself two cups of water and a teaspoon of salt.

Source: Health Line