What is the most logical next event?

How to treat the mumps 
Keep in mind mumps is contagious before symptoms occur. 
The symptoms of mumps usually develop 14 to 25 days after the person is infected. Someone who is infected with mumps is most contagious about 3 days before the facial swelling becomes evident.
Be aware, in addition, that in about 1 in 3 cases, mumps doesn't cause any noticeable symptoms in the infected person. Check for swelling of the salivary glands.