28 days old - Baby has colic

My baby is 28 days old. Fussy and always grunting si baby. Sabi ng pedia may colic daw sya. Always ko na sya pina pa burp after feed. Walang nireseta yung pedia kasi daw breasfeed naman si baby. Pinaiwas lang nya ako ng dairy products, nuts, etc. May need ba ako painomin sa baby ko?