How long does immunotherapy take to work for squamous cell skin cancer?

Immunotherapy helps immune cells recognise and attack cancer cells. The process may be gradual, and a visible change in a skin lesion does not always tell the whole story. Your team may measure a lesion, examine nearby skin and lymph nodes, review photographs or scans, and ask about pain, bleeding, discharge and movement. The treatment plan depends on where the cancer is located, whether it has spread, previous procedures and your general health. A lesion can look irritated during treatment for several reasons, including inflammation, so do not interpret a change alone.

Attend examinations and infusions as scheduled, and protect the treated area according to your team’s advice. Note changes in size, colour, tenderness, bleeding, crusting, discharge and the ability to use the nearby body part. Do not pick at a lesion or apply a new cream unless your clinician recommends it. Ask when measurements, photographs or scans will be repeated and what result would support continuing treatment. Tell the team about all medicines, creams and supplements before starting or changing them.

Contact your cancer team promptly for rapidly increasing swelling, spreading redness, persistent fever, heavy bleeding, pus-like discharge, severe pain, or a new rash over much of the body. These symptoms may reflect infection, inflammation or a treatment reaction and need assessment. Seek urgent help for bleeding that will not stop with pressure, swelling affecting breathing, fainting or sudden severe weakness. The need for urgent care depends on the symptom’s severity, not on whether a skin change proves that the cancer is responding.

How will you measure my skin lesion and when will it be checked? Which changes are expected after treatment, and which need a call? Should I use a particular dressing or cream? When would a scan or biopsy be considered if the examination is unclear?