hi and welcome,
After reading your history i suspect your palatal mucosa has undergone inflammation due to chronic habit of smoking which has lead to redness .
i would suggest you to try and get rid off the habit ,as it has many injurious effects on the oral mucous membrane .
You can apply oral antiseptic gels like dentogel or mucopain over the affected area which will help in reducing inflammation.
Start with a course of multivitamin or antioxidants like LYCOPENE 2000mcg twice daily for 7 to 10 days which is health supplement and has good regeneration preoperties.
use antiseptic mouth rinses for gargling like chlorhexidine ,gives soothing effect to the oral mucosa.
i hope this helps,
take care.

Dear friend

thanks for sharing your concern

it is good to know that you have quit smoking now.

do not worry. your palate shows signs of inflammation. that is why there is redness.

some times a specific lesion of the hard palate called STOMATITIS NICOTINA is seen in smokers. The red spot represents dilated and partially occluded orifices(opening) of accessory palatal salivary gland duct.

this inflammation is caused around the accessory palatal salivay gland duct.

on discontinuation of the habbit this should go.

observe for any associated changes. if so report to the dentist else you can wait and watch for few more weeks.

meanwhile you can take capsule becasoules 01 OD for fifteen days.

do use mouthwash daily, hexidine 2% for fifteen days.

take nutritious diet and remain stress free.

this helps.

thanks.