Do not use MONASAL: If the patient is allergic (hypersensitive) to mometasone furoate or any of the other excipients of MONASAL.
If the patient has an infection in the nose, such as herpes, as it can worsen the infection. The patient should wait until the infection is resolved before using the nasal spray.
If the patient recently had an operation on the nose or had injured the nose. The patient should wait until it has healed before using the nasal spray.