On the back of the first cat, the cause of hair loss is probably due to intensive self licking.This intensive licking is probably due to stress induced by all the the abnormal activity produced in the home of that cat during and after the flodding : anxiety
A homeopathic remedy that can help in this situation is called MILIANAT given 3 granules once a day for 2 to 3 weeks.
Dr.Paul Guindon DMV
Clinique veterinaire Salaberry
Medecine conventionnelle et holystique
1895 Salaberry, Montreal, QC