Hi thanks for contacting HCM... As such semen swallowing lead no side effect ... But before practising such habit your partner should be screened and tested for STD ... If not tested than ideally for that also barrier method used ... You can have temporary viral infection... Symptomatic management done for few days . More water . . Salt water gargles .... Benadryl like decongestent taken... But if your partner is at high risk and if your symptom increasing throat swab taken for culture and serological testing can be done for rule out STDs.. Take care . consult physician for examination...