Nute burn slowly dissipating, when to start to add fert again?

I have been struggling with nute burn for a few weeks now on my plants and after giving them only water for about 2 weeks it is starting to disappear completely except in just one of the 3 plants I have. The nute burn came from overdosing in the beginning of the veg state and they are now in the second week of flower.

When do you guys think I should start to slowly add nutrients?

Do have strength veg nutes for the first 2-3 weeks of flower then go to flower nutes