Yes, it absolutely related. It can cured with homeopathic treatment successfully. A proper homeopathy case taking can help your mother to get relief from rashes and even hyperthyroidism can bring into control. Consult me online for treatment through practo.
Next Steps
Even some kind foods can cause allergic symptoms so kindly observe those foods.
Health Tips
Thyroidinum 3x, 1-1-1,can be consumed for one month and see the changes.