Hello! Welcome on HCM! I read carefully your question and would explain that the infection in his forearm and his dizziness do not seem to be related. It is really less probable that dizziness may come so long before the local infection being visible. But, as it is an infection, I would recommend consulting with his doctor for a physical exam, a bacterial culture of the wound material and a complete blood count. It is important determine the infectious agent, in order to choose the best treatment options. Regarding the dizziness, I would recommend performing some tests: - a cervical spine X ray study for spondylarthrosis - labyrinthine tests for an inner ear disorder - a brain MRI - a Doppler ultrasound of the vertebral arteries to exclude possible vertebral artery insufficiency. Hope to have been helpful! There is no need to pay for these answers as they are free. Regards, Dr. Aida