How quickly does scalp cooling relieve hair loss from cancer treatment?

A cooling cap lowers the temperature of the scalp during treatment and for a period afterwards. This narrows local blood vessels and reduces the amount of some chemotherapy medicines reaching hair follicles. Hair may still shed, and results depend on the medicine, dose, schedule, cap fit and individual hair response. Scalp cooling is not suitable for every cancer or treatment plan, so the oncology team must confirm whether it is appropriate.

Ask about scalp cooling before the first eligible infusion because it normally needs to be planned with the chemotherapy appointment. Tell staff if the cap feels too tight or causes significant pain, headache, dizziness or skin discomfort. Handle hair gently between sessions: use mild products, avoid vigorous brushing and limit heat or chemical treatments if your team recommends this. Bring questions about the cooling time before and after treatment, as this varies with the regimen.

Tell the treatment team promptly about severe scalp pain, skin injury, persistent numbness, marked headache, dizziness or feeling unwell during cooling. Contact oncology staff if hair loss is sudden, patchy in an unusual way, or accompanied by redness, sores or infection signs. Do not stop or alter cancer treatment to preserve hair; discuss concerns before the next session so the team can review the plan safely.

Is scalp cooling compatible with my cancer and chemotherapy medicines? When should cooling start and finish around each infusion? What scalp symptoms should make me pause the session? How should I care for my hair between treatments?