For skin allergies due to strong detergents, dye, and scent, there are free & clear detergents you can use such as Ecos and Seventh Generation. They are safe for sensitive skin especially for people with eczema, skin asthma, etc. When washing clothes, just dispense enough detergent to clean your clothes. Run the entire cycle then rinse twice. That should take care of the residue that was left on the first rinse cycle.