My Son Has Genital Warts And Is Being Treated WithAldara

My son has genital warts and is being treated withAldara 3 times weekly. This is his second course in 12 months. Today after last nights application his testicals (which havent had the cream on) have gone bright red, very sore and itchy. He also has week legs and pins a nd needles. He is otherwise healthy. Reading the leaflet these symptoms are mentioned but due to the severity of the soreness, should he see a doctor.