Turn your Iodine into Iodide for a couple of days just to make sure you don't have further issues.
>>Should I do the salt thing?
Without the salt thing this could be a bromine issue, isn't bromine a major ingredient in some cough syrup?
****Dextromethorphan Hydrobromide****
Wombat did a wonderful job with writing up what is needed for this and to be careful and take it slow...