All these symptoms indicate that your husband might be having Pharyngitis
1. Gargle with warm salt water to relieve throat pain.
2. Analgesics like paracetamol
3. Antibiotics like amoxicillin
(if bacterial infection is suspected)
4. Antihistamine preparations can also be used to provide symptomatic relief.
If symptoms still persist...it will be better to consult an ENT specialist
Meanwhile...make sure he avoids taking cold food & drinks, maintains adequate hydration & takes soft, non-spicy foods.
Wishing him good health & a speedy recovery.
Thanks & take care.