My son was prescribed loratadine, singulair, flovent 110, ventolin 90, quvar 80 and proair 90... which are the best medicines to use together... the loratadine is daytime allergy and singular night time allergy but which are the best asthma medicines to use as preventive and control together out of the group he was prescribed? he is 5... two were prescribed by his doctor others prescribed by his specialist. I also believe one of them Quvar 80 is causing him to have mood changes, tantrums, etc could this be accurate also... help please