Symptoms associated with a cashew allergy include lip tingling, itching around the mouth, contact dermatitis, hives and throat tightening, according to About.com. Other symptoms of a cashew allergy include abdominal pain, vomiting, diarrhea and conjunctivitis.
Most people who have a tree nut allergy, such as a cashew allergy, have it for life, explains About.com. There is research, however, that indicates about 9 percent of children who have an allergy to tree nuts may outgrow it. Since this is the case, a child with this type of allergy may periodically go through testing to evaluate if the allergy is present throughout his life. Children who are allergic to more than one tree nut are less likely to outgrow the allergy.
The main treatment when someone has an allergic reaction to cashews is epinephrine, which is also known as the EpiPen, states About.com. It is important for those allergic to cashews to avoid these nuts, as in severe cases, anaphylaxis may occur. For children who have this condition, it is important that caregivers, teachers and other parents are aware of the situation to keep the child safe. These people must also know how to administer the EpiPen should an allergic reaction occur and know to read labels before feeding these children.