مناسك حج - مكارم شيرازى، ناصر - الصفحة ٨٤ - Acts that are Haraam in the State of Ihram
١٢- Removing hair from the body
Article ١٤٠- Muhrim should not remove hair from the his/ her body, even if it is performed by shaving, scissoring or removing by any other means, even if Muhrim do it himself/ herself or forced another person to do that, even removing only one hair from the body is not permitted and there is no difference between the parts of limbs of the body.
Article ١٤١- If Muhrim knows that combing causes hair removal then it is not permitted to comb the hairs of head or face, and it is a precaution that Muhrim abstains from combing hair in the state of Ihram. Also Muhrim should be aware that no hair to be removed by scratching.
Article ١٤٢- Whenever hair causes illness or severe discomfort, it is permitted to remove it but it has atonement and the amount of that will be mentioned in the next article.