I was stung on my finger by a wasp yesterday my finger is now swollen and hot. the swelling has increased over the past 12 hours?

Sting injury: The good news is that this is not consistent with an allergic reaction to the sting. If the swelling is simply from local irritation from the venom: then ice, keep elevated, and use Nsaid (if no contraindications). However, the delay in swelling raises concern for skin infection (bacteria living on skin can enter along with the stinger). A delay in treating an infection could put joints at risk