How long to take homeopathic remedies?

My husband has been going to a local homeopathic practitioner for over a month now. He was given natrum carb, but not with much explanation except that it helps with insomnia and anger issues. He was given first 1 200c doswe, then the 12c dose, which he took for a month. After the entire 12c
vial was gone,he was given more natrum carb.

I thought that once there was some improvement, you were supposed to stop taking a homeopathic remedy. Is it normal for somebody to still be prescribing the same homeopathic remedy for two months?

My husband has issues with poor circulation in his legs and feet, but the homeopathic practitioner gave him acupuncture treatments, which have had limited success.

Aren't there any kind of homeopathic remedies that address circulation issues
and impotence concerns? He also wants to put my husband on DHEA, which I've read is a supplement that has serious possible side effects, which concerns me greatly.

I need to hear from other experts to know if my husband is getting the best treatment
for all we've paid?

Thanks in advance for your response.