Lymph Nodes. A rounded mass of lymphatic tissue that is surrounded by a capsule of connective tissue. Lymph nodes filter lymph (lymphatic fluid), and they store lymphocytes (white blood cells).They are located along lymphatic vessels.Also called lymph gland.ymph Nodes. A rounded mass of lymphatic tissue that is surrounded by a capsule of connective tissue. Lymph nodes filter lymph (lymphatic fluid), and they store lymphocytes (white blood cells).
Staying away from these foods is the best way to avoid a reaction. Your childâs doctor may suggest other steps to prevent a reaction. If your child has any food allergy symptoms, see your childâs doctor or allergist. Only a doctor can properly diagnose whether your child has an IgE- or non-IgE food allergy.
Allergy tests may help find allergies to things you eat, touch, or breathe in. They are usually skin or blood tests. However, allergy tests alone are generally not enough. It is important to have a doctorâs exam and medical history first to help diagnose allergies.f your medical history suggests that you have an allergy, your doctor might refer you to an allergist or immunologist (doctors who specialize in allergies) for testing. 1  A skin test is the most common kind of allergy test.