so chase has like liquid stuff around his right eye.... it's like "eye boogers" but it's liguid and…

so chase has like liquid stuff around his right eye.... it's like "eye boogers" but it's liguid and it is constantly building up on the outside of his eye and in his eye lashes..... how do I fix it or stop it... I have been wiping it with wipes.... but only when he's sleeping so I don't irritate his eye ball.