DS is 15 months and in the past two weeks has started throwing full on tantrums when he is frustrated. Like on the ground, screaming, crying, flinging himself around. I know this is probably just a phase but it's brutal. Any advice on how to deal with it? Ignore? Comfort without reacting? Try to distract or divert?

I feel like everything we do is making it worse. How long did the tantrum stage last for you? Any tips? Help!