Soy intolerance and soy allergy is two different things. Soy intolerance is a condition where one is unable to digest the protein present in soy milk and soy foods. Soy allergy is an immune system response to soy protein that the body mistakenly believes is harmful. Soya or soy bean is responsible for many symptoms of Soy Intolerance and Soy Allergy. The symptoms of soy intolerance develop as soon as soy food is ingested, while others may show up after few hours.
Soy allergies are chiefly common in infants and young children. It is difficult to avoid eating soy because of its wide use in many processed foods, including infant formula, cereals, and salad dressings. The cause of a soy allergy is most often hereditary, passed on to you through your genes. If any family members suffer from this allergy you are more likely to develop the allergy at some point in your life.
The Symptoms of Soy allergy are acne, angioedema, rhinitis, anaphylaxis, asthma, atopic dermatitis, bronchospasm, colitis, conjunctivitis, diarrhea, diffuse small bowel disease, dyspnea, eczema, enterocolitis, fever, hypotension, itching, laryngeal edema, lethargy, pollinosis, urticaria, vomiting, and wheezing.
The symptoms of soy intolerance in adults are headache, nervousness, dizziness, sweating, burning sensation on skin, palpation, breathing difficulty, tightness in chest and face, etc. If the soy intolerance symptoms are minor, then they do not require any medical treatment and they will usually disappear within 48 hours or so. But more serious symptoms are treated with the help of antihistamine medicines. One can get relief from skin itching by application of ice.