 Beaverbrook increasingly came under attack from MPs who distrusted a press baron being employed by the state.He survived but became increasingly frustrated with his limited role and influence, and in October 1918 he resigned due to ill-health.A tooth had become infected with actinomycosis and the often fatal disease progressed into his throat; his English doctors were unable to discover a cure, and it was a Portuguese medic who cured him by administering iodine solution orally until the fungus was arrested.