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.
In immunotherapy, tiny amounts of the allergen are usually injected under the skin. The dose is gradually increased until a dose adequate to control symptoms (maintenance dose) is reached. A gradual increase is necessary because exposure to a high dose of the allergen too soon can cause an allergic reaction.