Sever side effects from finasteride

Patient: Hi,I’ve been suffering from hair loss since 3 years, & since last 9 months i am on Finasteride (1mg) & Minoxidil 10%.I have a good regrowth but since last 3-4 months I am facing sever side effects of Finasteride like weak erections, Loss of morning wood, low sexual desire.So do i need to quite finasteride ASAP or the Side effects will subside as i continue to consume it?Also is it safe and effective to use topical finasteride instead?if not can you please suggest an alternative to finasteride to continue the regrowth?Thank you!!

Symptoms: Weak erections, no morning wood, low libido