To build up tolerance to dog allergies, Investigate Immunotherapy, allergy shots build up immunity to allergens through increasing doses of allergy triggers. If you or a family member have a pet allergy but wish to keep pets in the home, immunotherapy can help build tolerance to one or more allergens over time. This is not a quick fix but can be an effective long-term solution. Those who are afraid of needles may consider Allergy drops as a pet allergy treatment option. Although this option does not work as well as allergy shots long term, it will help provide relief to those who would otherwise avoid immunotherapy due to being afraid to get shots. Allergy Meds to the Rescue, depending on your specific allergy and severity, speak to your allergist about over-the-counter or prescription medications that might make the allergy bearable as you take all of the other measures to minimize the allergens in your environment. Options include antihistamines, eye drops, steroid nasal sprays, and inhalers. Even if your family decides not to keep pets in the home, it’s best to have a medication plan for when you visit homes with pets.