Should I seek medical attention for discoloration in mouth?

Hello,

Welcome to icliniq.com. Regarding tongue swelling, it is tongue blister most likely due to local irritation and very less likely, but herpes could also present like this (attachment removed to protect patient identity). White patches could be due to dryness of mouth, leukoplakia, canker sore or thrush. Wait and watch strategy for 10 days. You can use salt containing gargles or lukewarm water with salt for three to four times a day, but only rinse your mouth with it. Follow up with a dentist of primary care physician if you develop pain, bleeding, swelling of the gums or if the lesion fails to resolve in 10 days from now. Avoid smoking cigarettes, alcohol consumption (if you are doing so) and consuming hot and spicy foods.