DS has cows milk protein allergy. On skin contact he very quickly comes up in hives and eczema worsens. He has never ingested any thank god, but the time he came closest he vomitted immediately anyway.
We were at a baby group today when I stupidly allowed him to play with another baby's soft toy which he sucked on for a couple of minutes after which the area around his mouth became very red and covered in hives. I monitered him and after about 40 minutes all his ezcema on his chest flared up and he became really unsettled - can only assume he had ingested a tiny amount. The other baby is on formula so assume all this caused by her saliva on the toy which must have had traces of cows milk in it.
Am now totally paranoid about playgroups, nursery, having other babies round to ours, indeed anything which will mean DS using other toys or another baby using his. Don't want to be obsessive mother but really don't want him to have further reactions. How do others handle this?