Study to Evaluate the Efficacy and Safety of "Allergovac Poliplus" in Polysensitized Patients With Allergic Rhinitis/Rhinoconjunctivitis, With or Without Asthma

This is an observational prospective multicenter clinical study, to evaluate the efficacy and safety of the treatment with Allergovac Poliplus subcutaneous immunotherapy (SCIT) with a mixture of 2 allergenic extracts (pollens or mites), in polymerized-depot formulation, administered in its different available allergenic extracts mixtures (2 pollens or 2 mites), and in one of the 2 recommended administration schedules (1 Day or Rapid).