Agreed, do not pump until it is completely cleared up. Apply vitamin E or Arnica. These scars are caused by pumping too long, the skin under the edge of the dome is deprived of blood while being squeezed and thus will kill the skin. The solution is to never pump more than 15 minutes before removing the domes and massage the area to restore circulation then you can replace the domes and pump for another 10 to 15 minutes.
You can continue with basic NBE by massaging your breasts with oil, coconut, almond or aloe vera. For increased effectiveness add fenugreek oil. Fenugreek oil is thicker and will not absorb well, so it needs to be mixed with aloe vera (thinnest of oils above) or one of the other oils to help absorbsion. Massage with oil twice a day for 5 minutes, longer does not provide more benefit, but you could do it more times a day. Only apply enough oil to be completely absorbed in the 5 minute period.
You can continue with basic NBE by massaging your breasts with oil, coconut, almond or aloe vera. For increased effectiveness add fenugreek oil. Fenugreek oil is thicker and will not absorb well, so it needs to be mixed with aloe vera (thinnest of oils above) or one of the other oils to help absorbsion. Massage with oil twice a day for 5 minutes, longer does not provide more benefit, but you could do it more times a day. Only apply enough oil to be completely absorbed in the 5 minute period.