Is Laser Hair Removal Recommend for Patients with Eczema?

You should make sure there are no open wounds when you have your laser hair removal, such as excessively scratches areas.  Use over the counter hydrocortisone ointment (or prescription cortisone cream if you have any) to any eczema areas on your back for the week prior to the treatment.  Numbing creams can irritate scratched or itchy patches, so it's best if you can get your dermatitis under control prior to applying the numbing cream.

Other than that laser hair removal should not effect your eczema at all.

Good luck

Even with active patches of eczema in the area, laser hair removal is perfectly safe. Lasers create a beam of highly concentrated light that penetrates deep into the skin where it delivers a controlled amount of therapeutic heat.  This light energy is absorbed by the pigment located in the hair follicles.  The laser pulses for a fraction of a second, just long enough to destroy numerous follicles at a time and leaves the surrounding skin unaffected. Prior to your treatment you should follow a vigorous regimen to get your eczema under control such as using a prescription-strength cortisone cream as well as a good moisturizing lotion on a daily basis.