Is it permissible for a barren woman who longs for children to buy a toy to hold to her chest at bedtime to alleviate her pain?

Scholars have exempted children's toys from the prohibition of images, for the purpose of training girls to raise children and show compassion towards them. An example of this is Aisha (may Allah be pleased with her) playing with doll-like figures made of rags, and the Prophet (peace and blessings be upon him) not forbidding her from it. However, this is a concession for the necessity of children's play and cannot be analogized to other situations.

It is not permissible to buy a toy that you embrace to your chest at bedtime, unless your feeling of a burning fire on your chest reaches a degree of severe harm, or fear of psychological or physical illness. In such a case, it becomes permissible for you under the principle that necessities permit the prohibited.

You can also rely on Allah and supplicate to Him during times of responsiveness with sincerity, so that He may remove what you are experiencing.