I've been using Young Living Therapeutic Grade Essential Oils for almost two years for my family. Ryder is almost three weeks old now, and since around the two week mark, he's had some gas. Which in turn causes pain and lots of crying.
I started using Peppermint (one drop diluted in one tablespoon of olive oil) on the bottom of his feet and on his stomach. http://www.youngliving.com/essential-oils/Peppermint . I don't rub all of the oil on him at once. I have a bottle of the peppermint and olive oil blend on hand next to his changing table.
I also started using the essential oil Di Gize for gas (one drop diluted in one teaspoon of olive oil) on his stomach. http://www.youngliving.com/essential-oil-blends/Di-Gize . Again, I don't put all of it on him at once, I have a bottle of the Di Gize and olive oil blend on hand next to his changing table.
To help with the crying, I use Peace and Calming neat on the bottom of his feet and back of his neck. http://www.youngliving.com/essential-oil-blends/Peace-And-Calming . His crying almost stops immediately!
If you'd like to purchase any of these oils, you can do so at www.youngliving.com. You'll have to create a customer account and enter my distributor number (1120251).