Will ignoring court summons due to illness cause problems?

Hello Sir, I have received a court summons in a debt recovery matter. The debt was taken by my father, and I have been summoned as his legal representative after his death. I am not aware of when my father borrowed the money. The lender claims to have a promissory note, but has not shown it to me. A court official called me to collect the summons at my native place, but I am currently elsewhere and unable to travel due to health issues. I was recently hospitalized, and the doctor has advised me not to travel for the next 20 days. According to the case details I checked online, the next hearing is scheduled within 30 days. Even if I go to collect the summons after 20 days, I may not have sufficient time to prepare or consult a lawyer. So I am thinking of not accepting the first summons and responding to the next one. Will this have a negative impact? Since I have a valid medical reason, can I request the court official to mark the reason and treat it as "door locked"?