What is commonly used to help a stressed woman to climax in bed?

Don't add stress: For sure, you don't want to add stress to this woman because that will make it worse. You can be a truly loving partner to her -- not just in bed. If she's on certain medications like ssri's, this could be the cause of delayed climax & she could talk with her doc. You could encourage her to get help with the stress she's experiencing; relationships can be a significant part of this, for many.