Hello,
Persistent itching on the toes when you do not have any fungal/bacterial infection or any
autoimmune disease but have history of hypothyroidism; hypothyroidism causes dry skin and hence triggers itching. You are suggested to take care of your hygiene. Apply cooling agents like calamine or
Soframycin ointment on the area affected. Keep your skin moisturized. Ice packs and topical anesthetics that contain pramoxine are also effective. You can take non sedating antihistamines,
levocetirizine for relief, orally at bed time.
You are taking
Wellbutrin 450 mg for almost 4 years. Wellbutrin is a medication that causes side effect called
formication, sensation of small insects crawling on (or under) the skin when there is nothing there. It may also cause pricking, tingling, pins and needles sensation. You are suggested to consult your treating doctor so that the dose can be monitored or medicine replaced by other medication that suits you better.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician