Can I use cannabis for more than a few days at a time?

Can I use cannabis for more than a few days at a time?

My doctor always tells me I shouldn’t use stuff like Naproxen or stronger pain killers for more than a few days because they can be hard on the gut. The only problem is my flare ups sometimes last longer than that and its sometimes difficult to manage the pain. Would cannabis be okay to use longer term?

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