Gout flare. Food. please suggest.

I have recently been operated for inguinal hernia. I was taking telzy 40 and Fevuric 40 prior to surgery. On the 4th day of surgery as I was given 1st semi solid food ( kichdi) my feet swelled up with pain almost immediately. I have been restored dosage of Furic from the next day but swelling and pain remains. I have been drinking about 4 litres of water everyday and had history of high uric acid since few years. I had a painkiller ( Signoflam) last night and felt better. This morning I am drinking water as usual and had furic 40 but slight inflammation and pain remains. I am very careful of my diet and being in rest and pre- operative investigations shows no major trouble in my abdomen with normal liver and kidney. How can I get back to normalcy and why did this sudden flare happen despite being under liquid food. Please suggest.🙏