Nasal allergies will not affect the surgery or outcome for the cosmetic portion of your rhinoplasty. In other words, changes to the size and shape of your nose will not be affected or limited. However, functional changes to your nasal breathing may be impacted. If not done properly, rhinoplasty can have an adverse effect on nasal breathing, especially when coupled with preexisting allergy. It is important for your surgeon to address and nasal valve collapse, septal deflections, and turbinate enlargements. The turbinates are especially important because they often become swollen with chronic allergy. After surgery, it may be more important for you to use decongestants and saline to keep the swelling inside the nose down and wash away crusts and allergens. Nasal allergies should not prevent you from getting the result you are seeking.