2 day's after musclegroup training.?

2 day's after musclegroup training.?

well, oke.

When I train, I train 2 muscle groups. For example. Chest, abs.
But 2 days after the hard training in the gym my chest/abs are still hurting from the exercises!

Should I continue the workout 2 day's after the exercise?
Or should I wait till it stops hurting?
Is it good if it hurts that long time?

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I would train lighter, but train these muscle groups. For me it happens when there are large time spans between training of the same muscles or when i overtrain.