Hello and hope you are well.
A clinical examination is necessary for correct diagnosis. These red bumps on the chin could possibly be due to perioral dermatitis, acne, fungal infection or impetigo In perioral dermatitis there is redness of the skin around the mouth .There are small red bumps or pus bumps, and mild peeling. Acne can cause appearance or red pus filled bumps on the chin. In impetigo a bacterial skin infection there are red and blistery sores that usually appear around the mouth and nose. The sores may ooze for a few days and then crust over. You may need topical antibiotics. A clinical examination is necessary. See a dermatologist. Treatment will depend on the cause. Do keep me posted.
Best luck and regards!