The amount of radio iodine given for treatment of benign thyroid problems is too less to cause any significant side effects (apart from hypothyroidism
The dry skin
and hair is a symptom of hypothyroidism.
Please check your TSH level
and maintain them within 2 microIU/ml.
If TSH is higher than 2 microIU/ml, you will have to increase the dose of thyroxine
Dose of thyroxin can be increased in 25 microgram levels.
Kindly remember that it may take up to 4 weeks for your TSH levels to stabilize after starting new dose of thyroxine.