We would suggest that you wait until any shedding has returned to normal. This can take about 12 weeks – maybe more or less for different people. This will also allow some time for your body to recover from the chemotherapy and for any heightened skin and scalp sensitivity to reduce. Please do take advice from an experience hairdresser who is aware of your circumstances, as they will be able to assess whether your hair is ready for the dyeing process. It is also important to ensure that you patch test ahead of your hair being dyed.
For more information on post-scalp cooling haircare click here