DTaP or DT Vaccine

• Pain, tenderness, swelling or redness at the injection site (in 25% of children) and lasts for 24 to 48 hours. A swollen arm or leg following 4th or 5th DTaP occurs in 3% and is not serious.
• Fever (in 25% of children) and lasts for 24 to 48 hours
• Mild drowsiness (30%), fretfulness (30%) or poor appetite (10%) and lasts for 24 to 48 hours.
• A painless lump (or nodule) at the DTaP injection site can occur 1 or 2 weeks later. It is harmless and usually will disappear in about 2 months.
  Call Your Doctor If: It turns red or tender to the touch.