Feasibility in the Prophylaxis of Radiation Dermatitis Severity

Inclusion Criteria: * Age ≥ 18years * Undergoing external beam radiotherapy for head/neck cancer at Mayo Clinic Rochester campus. Note: patients undergoing concurrent chemotherapy are eligible. * Able to provide informed written consent * Willing to consent for photography of radiation field * Receiving a dose ≥ 45 Gy and 20 fractions to both the area being treated and the area being used for comparison Exclusion Criteria: * Patients with active rash, pre-existing dermatitis, lupus, tattoos, scleroderma or other conditions within the treatment area that may make skin assessment for the study difficult per treating physician discretion. * Patients with known allergic and other systemic skin diseases even if not directly affecting irradiated fields. * Any medical condition that in the opinion of the investigator should exclude him/her from participating in the study. * Enrolled in an investigational study where product was applied to the proposed study site within 30 days of the screening visit * The skin area affected by radiation requires treatment with a concomitant medication or product (if applicable)