Im a newby here, 43 year old male

Advice please.

I had very bad acne age 15-22, and have the scars to show for it. Now at age 43 it's all coming back. Yet it's not like normal acne. It comes in waves and is more welt like and under the surface. I can be totally clear then get a dozen welts over night. They last for about 5 days. I clear up then get hit again. Im mostly thinking it's environmental or from food. The condition started 1 week after moving into our new home in a new county.

Any ideas?