Tongue swelling. Last year. pls help us.

On 13.07.17 my dad had a sudden swelling in his tongue and was diagnosed with Angioedema tongue. Dr said that it was due to brinjal that he ate that day.His BP was 130/85.After taking medicines Alarax,Esoxem,etc.  Suddenly 2 days back at night he had sudden swelling in his tongue and he couldn't even breath properly and was sweating continuously.(That night he had some bellpeppers ,prunes and wallnuts). Hetook the tablet Avil and not much improvement occurred but the swelling stopped.Next morning he visited the Dr and he gave the tests of Creatinine,FT4,TSH,Sugar (fasting and pp),Lipid profile, Urine and IGE for allergy.Still his words are not clear and couldn't speak clearly. Till tomorrow he could only eat fluid food. Pls help us out this tongue swelling problem has started after his typhoid last year. Pls help us.