Skin Allergy to Citrus???

Sensitivity to citrus and other highly acidic foods is very common, and isn't usually an actual allergy (thank goodness.) I agree with a few people that have suggested basically SLOWLY introducing these things to your son will help, and that he will outgrow this, hopefully. Does he get a rash when he eats them, or just when they touch his skin? I love to eat oranges, but I have to slice them a special way with a knife so that the juice doesn't escape and I eat them differently, too, so as not to get the juice all over my lips, etc, or it bothers me too.

My son is like this too. Sensitivity to acidic fruits is relatively common. I've talked with my doctor a lot about this, and her philosophy is to not worry too much about the rashes, especially if they aren't bothering my son. So, for example, she recommends limiting trigger foods, but doesn't think it's necessary to go overboard in avoiding them. So, I have slowly slowly increased my sons consumption of tomatos, citrus, and berries, and now he can have normal servings without rash. To clear up rashes, I use A&D lotion, mixed with a little hydrocortisone cream. My doctor says to be careful not to use too much hydrocortisone on the face, but it can be used more generously on other parts of the body.

I don't think it is an allergy but all citrus is acidic and can cause sensitivity. Introduce these items slowly. If he is drinking any citrus drinks be sure to dilute them. I do with my kids. Cuts down on the sugar and acidity content :)

My son coudn't have tomato anything for a long time. It gave him an incredible diaper rash and broke his face out just where it touched. He grew out of it.

My daughter is allergic/highly sensitive to kiwis, bananas, apricots, mangoes, among others so I mark it on all her sheets and have taught her to say NO to certain foods. She is now 13 and knows what is off limits.

Start by saying he is allergic to this and that. Technically my daughter is not allergic to some of the foods that cause her to break out, or so the allergist says. Teachers dont; have time to decipher wheter or not a child can have a certain food. It's either yes or no. We play it safe and just say she is allergic.
Let the preschool know and then when he gets to elementary school there will be papers to fill out for the teacher and the nurse. THey will take them seriously.
Teach him what can and can't be eaten. Right now he is 3, so he is allergic, these foods make him sick. That's all he needs to know. When he gets older he can learn just how allergies/sensitivities play out and that he still has to stay away from certain things.