I'm assuming that a significant diagnostic process has been concluded in order to reach the PDD diagnosis. Since the behavior you describe indicates a significant auditory component, if it hasn't already been done, I would certainly suggest an evaluation by an ENT specialist re: this particular symptom. The behavioral intervention may be ineffective if the stimulus is as strong as it apears to be. I'd focus more attention right now on the stimulus/precipitant than on the response.
Yes - a thorough diagnostic process was done to conclude his PDD diagnosis.
The parents are making arrangement to see a Neurologist and will also make speedy arrangements to get an evaluation from an ENT specialist for this particular symptom.
There are some stimuli that we can control, ie watching Rugrats with no sound. However, for those stimuli that are out of our control, what can we do in the meantime while his appointments are being scheduled to prevent him from hurting himself when he is banging/slapping his ears?
I've recommended that his hands be lightly pressed against his head/ears to prevent him from hurting himself. Any suggestions?
Please advise.
It goes without saying, I suppose, that he will benefit from a tranquil (re: noise) environment. However, it's the real world, so there's a limit to how much the stimulation can be reduced. To prevent his behavioral response almost requires a one-to-one aide, and this is not likely feasible.
Do you think maybe ear plugs would help as a temporary solution? if right ear is overly sensitive to sound, maybe putting an ear plug in just the right ear would be enough to muffle some of the irritating noises.
I can't responsibly offer you an opinion about that.