Sounds pretty normal to me. You may want to try using ice chips and just let them melt in your mouth, or sip on ice water instead of sucking on ice cubes. Suction can actually cause swelling to increase.
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Standard Disclaimer: I am not a piercing professional, medical student or medical professional. Just one of the pierced.
"The most damaging phrase in the english language is: It's always been done that way."
- Admiral Grace Hopper (1906-1992)