It is very common to experience headaches with prolonged screen use, often due to eye strain or muscle tension. Your wife's long screen hours and mild eye prescription are likely contributors. While Saridon (which contains paracetamol, propyphenazone, and caffeine) provides quick relief, taking it three times a week is quite frequent. Using pain relievers this often can actually cause 'medication overuse headaches,' making the pain return. I warmly recommend she takes regular screen breaks, ensures her glasses prescription is up-to-date, and consults a healthcare professional to safely manage these headaches.