Glioblastoma multiforme makes up about some 15 % of brain tumors, and it is most often diagnosed among people aged 45 to 70. Optune was first approved in 2011 to treat this type of brain tumor once it had progressed despite chemotherapy. It will not be used without a doctor’s supervision, the company warned. Skin irritation is the most common side effect, and users also have a slightly greater-than-average threat of neurologic adverse reactions, including headaches or convulsions, the FDA said. People with an implanted medical device, skull skin or abnormality sensitivity should not use Optune, the agency said. These devices is manufactured by Portsmouth, N.H.-structured Novocure Inc..He recommends that the next phase of the AFT laser treatment be performed after four weeks. After the treatment, you might experience some redness or pinkness; that is temporary. Also, some interpersonal people experience slight swelling for the first week, but which will soon pass. For the best results, he suggests to his patients to avoid sunlight for the first 24 hours. When venturing out in sunlight, his advices to apply at the least SPF 30 sunlight block after the laser treatment. What unwanted effects are associated With the AFT laser treatment? The most common side-effect that Dr. Torgerson sees at his Toronto Clinic is definitely redness through the first few days. Aswell, for afew times after AFT, the treated area may appear darker.