<s>[INST] Hi, My son is 9 yrs old. He has been put on seroflo 50 since last 2 yrs. For the first year, he was on 2 puffs a day and the second year, the dose was reduced to 1 puff a day (before bedtime). I have had no chance to use Asthalin as SOS as doctor had prescribed but today the weather being very cold, I can hear him wheezing although he is wheezing comfortably with intermittent coughs. I have already given him 2+2 doses of Asthalin in a gap of 4 hours. My question to you is, how often can I give asthalin as SOS? I second question is, is my son going to be dependant on seroflow all his life? [/INST] Hi...1. You can give asthalin SOS 2 puffs every 2-6th hourly depending on need.2. No worry about dependency. These drugs do not act on brain to cause dependency. As you can see they are being gradually tapered and ultimately depending on level of control of symptoms they will be stopped.Regards - Dr. Sumanth </s>