SELECT count(*) FROM has_allergy AS T1 JOIN Student AS T2 ON T1.StuID  =  T2.StuID WHERE T2.sex  =  "F" AND T1.allergy  =  "Milk" OR T1.allergy  =  "Eggs"
How many students who are female are allergic to milk or eggs?
[Schema (values) (types)]: | allergy_1 |  Allergy_Type : allergy (text) , allergytype (text) | Has_Allergy : stuid (text) , allergy (text) | Student : stuid (text) , lname (text) , fname (text) , age (number) , sex (text) , major (number) , advisor (text) , city_code (text);