What Causes Itchy Red Rash On Body While On Synthroid?

Posted on Mon, 17 Aug 2015

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Mon, 17 Aug 2015 Answered on

Wed, 2 Sep 2015 Last reviewed on

Question : I am taking synthroid 100 mcg and have take n it for 20 years.I have developed an itchy red rash which moves from place to place for about a month and wondered if it could possibly related to a low thyroid or some mysterious environmental reason of which I would not know XXXXXXX XXXXX

Answered by Dr. Binu Parameswaran Pillai (15 minutes later)

Brief Answer:
Very unlikey due to hypothyroidism

Detailed Answer:
Good day,
Noted your concern. Rarely a skin rash develop along with swelling in diabetes mainly in shin area of legs which is called as pretibial myxedema. However, the rashes what you are having is unlikely to be due to this. Besides, this rash is ore common in Hyperthyroidism.

Since you have been taking Synthroid for several years with any probem, the rash is unlikely to be due to synthroid as well. Your doctor has prescribed cortisone ointment which means the rash is likely an allergic type which will fade away with time.
Regards
Binu

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar