| Yes, it is normal in some to have this effect for about 2 days. It is a side effect of being shot with a small does of the live bacteria. MMR by the way is Measles Mumps and Rubella.
During this time your body is building up a resistance to the diseases in question. If you begin running a temp over 102F then you should go to the doc or hospital.
In the meantime some acetominaphin (sp) will help with the swelling aches and pains. |