A severe headache lasting 10 days is not normal and needs medical evaluation, especially to rule out causes like Migraine or Tension headache, so consult a doctor soon rather than self-medicating. Meanwhile, stay well hydrated, get proper sleep, avoid screen strain and stress, and you may take simple relief like paracetamol if needed

Your symptoms suggest Migraine triggered by screen use, stress, and bright light. Since DART is unavailable, similar relief can be achieved with simple painkillers like paracetamol or ibuprofen taken early, or combination tablets containing paracetamol and caffeine. Reducing triggers, using screen filters, wearing sunglasses, staying hydrated, and managing stress also help. Avoid frequent painkiller use, as it can worsen headaches. If attacks are frequent or severe, consult a doctor for more specific migraine treatment options.