infections when in remission after R chop and rituximab

I am just wondering what peoples experience is of infections after completed R chop and Rituximab. (I'm 58, 3 years complete remission)

I'm in complete remission which is wonderful! I finished 2 years of rituximab in Nov 2016. I was treated for a chest infection in Nov 2016, x 2 antibiotics. However, since then I have continued to cough up much horrible green phlegm, sore throats, blocked nose. I went to see gp 2 July 2018, antibiotics given, all clear. 3 weeks later am getting old sympotoms back, he's given me antibiotics again.

Have other people found they are more prone to infections after treatment of r chop and rituximab, OR, am I more prone to infections as had low grade follicular lymphoma??? 

Thank you for sharing any experience of the above

 

Sara.