Do you think if someone with bad acne went to a foreign country would come back spot-free?

Because of less pollution and cleaner air and water maybe? Do you think that only USA has as bad a problem than other countries?

no, i had a friend in Germany who had bad acne in the states and it stayed in Germany too. he had to get a prescription to clear it up.

No. We are not the only country that has pollution. Acne is not caused by pollution otherwise every person would have it.

No!, Acne can be caused because of various reasons, consult some good doctor if the problem is serious.

also check below Home Remedies for Acne

No

If the cause of a persons acne is environmental than it may clear up by going to a different climate with different air purity, moisture, etc.
But that definitely doesn't mean that a person with bad acne who is sensitive to the environment needs to move in order for there skin to clear up!
There are many products in the market that can help protect the skin from environmental stress. For example, Dermalogica makes a product called Barrier repair, which repairs the skins protective layer, while creating a barrier to prevent further damage. I have used it for months now and absolutely love it!
Acne and other skin conditions are caused by a variety of reasons, including stress, hormones, food, products, environment, etc. Therefore, the US is definitely not going to be the only country with citizens who may have "problematic" skin.