Hi there. At the outset, i think your husband needs to go see a surgeon. It appears there is some sort of secondary infection & abscess
formation that my require to be surgically removed but is best done by the treating doctor on the ground after asessing. HE MAY HAVE BEEN RESISTANT TO THE ANTIBIOTIC HE TOOK, hence may require to change the molecule & add some anti-inflammatory agent eg ibuprofen
. Am assuming he has taken his rabies
shots as per protocol. Cheers & get well soon.