Increase iodine remedies slowly while monitoring your wellbeing. When using high-dose iodine you may monitor your thyroid function by checking your temperature before getting up in the morning. Measuring under the tongue is more reliable than in the armpit.
Women before menopause measure in the first half of the cycle before ovulation and best in the first week after the start of a new period. The temperature should be 36.5ºC (97.6ºF) or higher, otherwise the thyroid is likely to be under-active.
However, be sure that you do not have a raised temperature due to a healing reaction or an infection.