DVT is a blood clot that forms in a major vein of your body, most commonly in your legs. It can also occur in your arms. * Swelling in the affected leg or arm, which can include swelling in the foot or ankle. It is most typically in one leg or arm.
Allergen immunotherapy is appropriate for patients suffering from immunoglobulin E (IgE)âmediated allergic diseases such as seasonal allergic rhinitis, perennial rhinitis, allergic asthma, and insect venomanaphylaxis.
What are Allergies and Its Symptoms. An allergy is a heightened sensitivity to a foreign substance (called an allergen) that causes the body's defense system (the immune system) to overreact when defending itself. Normally, the immune system would only react if a harmful substance, such as bacteria, attacks the body.