Intense itching third trimester

Hi, I am 33 weeks + 4 days and I’m experiencing severe itching on my tummy, and it’s not just on the stretchmarks. I went for my check up at 32 weeks and dr prescribed some pills and moisturiser cream which hasn’t worked because the itch has spread to below my boobline, my boobs and also arms. Now the texture kinda looks like hives. I have tried mustela stretchmark cream, aloe vera gel, calamine lotion and applying snake brand powder but all only gave temporary relief. Pls suggest something!!😭 i’m going out of my mind trying to be mindful not too scratch my tummy too violently