TRENTON, N.J. (AP) — For decades, seasonal allergy sufferers had two therapy options to ease the misery of hay fever. [...] patients can try another type of therapy to train their immune system, new once-a-day tablets that dissolve quickly under the tongue and steadily raise tolerance to grass or ragweed pollen, much like the shots. The tablets could become popular with people who dislike pills that can make them drowsy or don't provide enough relief. A handful of companies also are looking at possible new ways to administer immunotherapy, including drops under the tongue, capsules and skin patches, said Fort Lauderdale, Florida, allergist Dr.