Yesterday we found out our son has a cod fish allergy. He woke from his nap with red swellings that were really hot and had raised white lumps. We took him straight to the doctor who confirmed that it would have been an allergic reaction to the fish he’d eaten a couple of hours before. The rash disappeared after about an hour.

Anyone got experience with this? Can he get it through my milk? I had also eaten fish when he did yesterday and since then a couple of hours after he takes my milk he gets a mild rash that’s less severe but definitely the same. It seems pretty clear that my milk is causing the reaction... but the doctor didn’t warn me of this (and I didn’t think to ask at the time). And this is 24 hours after he ate the fish and yet he’s got a rash... how long can it last in my milk?