The primary treatment for mastoiditis is 1. topical antibiotics. 2. topical steroids. 3. ...

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Rationale 1: Topical antibiotics are usually used for external ear infections.
Rationale 2: Topical steroids are usually used for external ear infections.
Rationale 3: Systemic antibiotics are used to treat mastoiditis.
Rationale 4: Systemic steroids are not the drugs of choice in treatment of mastoiditis.
Global Rationale: Systemic antibiotics are used to treat mastoiditis. Topical antibiotics are usually used for external ear infections. Topical steroids are usually used for external ear infections. Systemic steroids are not the drugs of choice in treatment of mastoiditis.