My son had a viral fever (as per pediatritian) where his fever reached 104. After the fever subsided he started getting severe headache, dizziness & sometimes he feels nauseated. While this was happening he got an attack of sever coughing. It has been 3 weeks & we have met various doctors & done blood tests, x-Ray of chest. Both have come clear. We met a neurologist & he prescribed Topaz 25. After seeing little improvement he is prescribed Topaz 50. Firstly is Tooaz safe for a child of 11 & secondly what diagnosis can you make of this. Please help. Ameet Suchde