If you put itch cream on your insect bite it will ally the itchyness.
When Jack had a nightmare, his mother was able to allay his fears.
Allay is like comfort so maybe, "She allayed that girl."
She was worried that I was going to steal her sandwich. But I allayed her fears by explaining that I had already eaten a dozen raw carrots.
The word "allay" means to calm someone down when they are experiencing an intense emotion, such as fear or anger. Here is an example sentence: The sponsors are very worried about the upcoming...