Could the outbreak of caner sores be due to an allergy  to Pistachios?
Patient: I get canker sores a lot and I've been trying to figure out why.  I love Pistachios and noticed that the last couple of times I've eaten them, I end up with severe canker sores.  I eat other nuts and have never had a reaction.  Could I be allergic to pistachios and not to other nuts, or could it just be a coincidence that I broke out after eating pistachios? Doctor: Hi, it shows that you are allergic to pitachios , but are you sure that you are not allergic to other tree nuts like almond or cashew, peanut and ground nut are not tree nuts. even this is possible as some people are allergic to some specific nuts protein and least to others. but it can be diagnosed by patch test and it can confirm where you are allergic to other or not also, so go for this and till then completely avoid its consumption. for the treatment of  your canker you can take local glycerine borax, B complex forte tab, maintain good oral hygeine by aqueous chlorhexidine 0.2% mouthwash , can use triamcinolone local paste , for pain you can take lignocaine mouth gel or paracetamol tab  6 hourly. if your patch test comes negative for pistachios then you should meet an ENT specialist to rule out other causes and treat them accordingly. thanks and take care.