<human>: I have a 3lb chihuahua with severe allergies. He's allergic to most dog food, fleas, and grass.

As advised by the vet, I make sure that he has no fleas on him, make sure his food is wheat/gluten/starches free, and use a cloth to wipe off his little paws after he comes inside. I also give him 1cc of children's benedryl twice a day, and rub him down with olive oil to reduce skin irritation.

The main problem is, he's scratching to the point of bleeding and causing sores. He's also tearing out fur. 

While he's always had allergies, it has only gotten this bad in the recent months. I'll be getting him to the vet next week after I get paid, but something needs to be done now, because he's hurting himself. I've tried keeping coats on him, but he tears them off. My mother in law is making padding booties for him but... he's going to be miserable.

Any advice is appreciated.

Can you give me a shortened version of the text?
<bot>: Chihuahua has severe allergies and benedryl isn't helping. He's hurting himself he's scratching so much.