47yo, smoking 7 years. red patches on roof of mouth. tender. have a cold/lost my voice. no fever, throat scratchy, not sore.no swollen glands,help?

Inflammatory lesion: The lesion in your upper oral cavity are an inflammatory reaction with irritation. This indicates abnormal cellular growth, most likely. You need to talk with your PCP about this and consider a referral to an ENT MD for eval.

Probably viral: It sounds like you could have viral lesions on the roof of the mouth. They will probably resolve in the next few days with saline rinses of warm water 1 cup mixed with a teaspoon of salt. If they do not resolve spontaneously have them looked at by your primary care doctor. They will decide if an ENT is necessary to check it out. You can also buy chloreseptic spray OTCwhich will anesthetize it.

Stop smoking. : That sounds like allergies. Nasal congestion, runny nose, cough, headache, facial pains and earache can be triggered by fragrances, dust mites (sweeping the floor), grass, trees, pets, environmental molds and such. There are outdoor and indoor allergens. OTC nasal steroid and nasal saline are worth a try.