Hello, which medicine is best to increase sperm...

Sperm motility treatment:
Treatment is done by treating the cause that leads to the occurrence of these symptoms, after conducting the necessary medical examinations and arriving at an accurate diagnosis. The cause and treatment are determined by the doctor. In case the issue is related to low hormone levels a hormone replacing therapy may be effective. In addition having supplements like selenium and vitamin E are very helpful. 
Also you should exercise regularly, have well balanced diet and avoid alcohol and smoking. 
Diagnosis:
Diagnosis is made by taking a detailed medical history, family history and making important tests like semen analysis to test motility and ejaculation and male organs. 
Symptoms: 

*Hormonal imbalance
*Pain during ejaculation
*Problems with sexual function
*Decreased sex interest
*Trouble conceiving
*Decreased facial or body hair 
Advice:
Follow up with the doctor of Andrology and Infertility.