Hallucinogen Persisting Perception Disorder HPPD: Symptoms & Treatment

Content Management and treatment What is visual snow? Symptoms and treatments What Is Hallucinogen Persisting Perception Disorder (HPPD)? Some refer to it as a form of micropsia or macropsia, meaning they see things smaller or larger than their actual size. If you are experiencing symptoms of HPPD, it is important to see a doctor. They

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