I ate rice crackers - I did not have my glasses on or I would have read the label. Yes! The crackers contained ribonucleotides - I have been aware of an allergy to MSG for about 40 years. That was seven months ago. After two doctors and two dermatologists I almost have the skin back on my legs. From my ankle to my knee I was covered in a rash that turned into keratoses (skin growths that some people develop as they age, can be benign or cancerous). In part my problem was exaggerated by my age - I am 85 in a few weeks.  My legs are much better but I have one lump that will have to be cut out - Molly, South Africa

(More about Ribo Rash caused by  ribonucleotide flavour enhancers E627, E631, E635)