Stuffy nose help

Pa

Our almost 3 month old has had this stuffy nose for about a week now and nothing seems to help. ☹️ We run the humidifier, few drops of saline in his nose throughout the day and a chest rub that is similar to baby Vick’s but more natural. The saline helps for about an hour then he starts getting stuffy again. And the last two days he’s woken up between 3 & 4am because of his stuffy nose. Does anyone have any tips/tricks to help with this?