I had oralsex lately,now there are red&yellow sores on my soft palate & bigger sores back of my tongue somehow on pharynx,hard palate is gettin yellow?

Need examination: oral G and C or other sexual transmitted viral infections can have oral manifestation.

You should see MD: You shold see your MD to make sure you haven't contacted an infection. Especially if you are having pain now.

Mouth sores/oral sex: I understand your distress. Overall HIV risk of oral sex is low. Let Wise Person in you ask about: • Sexual encounters duration and frequency • Overall Health • Gum disease • Alcohol use • Tobacco use • Stress Discuss these with a Physician and Dentist for Diagnosis and Treatment. Your Health is Precious!