Home remedies are normally non-irritating so there shouldn't be an issue. That being said, everyone's skin type responds differently to external substances. For example, the high acidity of lemon juice could cause your skin to respond adversely, especially if it is still irritated from the IPL (though 2 weeks should have been enough of a healing period).
Here's a personal recommended mixture that works wonders for soothing the skin, reducing the appearance of pores and fighting blemishes:
1 egg white, 1 tablespoon milk and 2 teaspoons each of lemon juice & calamansi honey.
The egg whites make an excellent mask base, as they’re full of protein (which is great for nourishing the skin) and they do provide a great deal of firming power AND help reduce the appearance of your pores.
The milk will soften the skin, extra points if it's raw milk as many of the nutrients are diminished through boiling.
The lemon juice is a powerful astringent, which keeps oil and pimples at bay. Lemon juice also lightens the skin, reducing discoloration and giving your face a fresh glow.
The honey provides antibacterial power, luxurious moisturizing, and (surprisingly) a bit of drying. Honey’s great for all skin types and for just about any facial care reason you can think of.
Mix them all together and apply the mask, leaving it on for 10-15 minutes or until your skin feels very tight. Wash completely and you'll be surprised with the immediate results - especially with regards to tightening skin and reducing redness.