Red Itchy Toes can be caused by your toes becoming dry due to the cold weather and dry air in your home or the red itchy toes could also be caused by a fungus due to moist conditions in your shoes and socks.
There's a condition called Chilblains which can also cause red itchy toes as well and is caused by exposure to very cold temperatures.
You should apply some foot powder or baby powder to your feet and in your socks and shoes and apply some moisturizing cream to your toes and feet as well.