We should recite the following dua when we sneeze or when we have someone around us sneeze.
http://www.jazakallah.in/wp-content/...n-sneezing.jpg
If the sneezing person is a woman, the reply is with a kasrah (zer) on the kaaf.
If the sneezing person dose not recite “Alhamdulillaah” then it is not necessary to reply but if he does say so then it is waajib reply.
If the sneezing person has flu or any other difficulty which results in repeated sneezes then it is not necessary to reply after the third time.
