When should you be back to normal after chest infection?

[Nospringflower]

My son has had a viral wheeze diagnosed in the past (needed hospitalised for it) but not had for a couple of years. He has had inhalers to use when necessary and uses occasionally when he has a cough.

Since before christmas he has been coughing away and then got a lot worse a week ago so took him to the doctor. They said they could hear 'crackles' on his chest so gave him antibiotics. He took them for a week (finished Tuesday) and has got better but is still not back to normal e.g. today he walked home from school but after walking up steps this 'triggered' a reaction and so was coughing and breathless.

Not sure what to do (he is a very stoical child so you don't get much sense of whether it is bad or not) - is this just normal recovery after a chest infection or does it suggest that the antibiotics haven't worked?

Thanks for any advice.

My little one suffered from this so much is it something that's happens a lot ??

My DD was left "weak chested" after a chest infection, and gets wheezy after every cold. She's now on long term asthma medication, but the Dr is hopeful that she'll' outgrow' it

Thanks for your responses. I took him to the doctor as he is going away with friends on holiday next week and I didn't want them to have to make decisions. Doctor said his chest as clad just that it would take a few weeks to be completely over it. Want him to come back for asthma investigations if cough persists.