Throat irritation and stuck feeling. Do?

1. I ate cold dahi on 28th April, 2020. On the very next day I felt pain in my throat along with light fever. 2. I have taken Paracetamol 650 on 29th April. 3.Gradually pain had gone and feeling choked and light irritation in my throat and that's why I had to take strepsil which gave me relief for sometimes & had to take citrizine for 2days. 4.since 4th May I felt that something is stuck in my throat but did not feel any pain. 5.As Lockdown is going on I can't able to connect any Doctor so I have to take Cifran 500 for 2Tabs*5days (suggested by a pharmacist). 6.Till now this issue remains same because this stuck feeling is not cured by that medicine. In this situation, what should I do? Please advice. Attached picture shows the exact area of stuck feeling.