Thank you for your query,
As the child is having repeated infections during the past 8 months basic evaluation to be carried out to detect for any underlying problem.
Basic investigations include CBP, ESR, Widal test
, malarial parasite, complete urine examination to look for any cause of infection.
Child needs complete physical examination to look for any enlarged lymph node
So consult your Pediatrician
for proper evaluation.
Hope I have answered your query.