Hi welcome to Health care magic forum. You are trying for conception, your husband had problem in semen, he got treated for that and cleared of it, your doctor also expressed the same openion, then why you are worrying, cheer up. In course of time he will get improvement in the count as well.
I advise you some diet recommendations to help the process. take more of green leafy vegetables, pulses, non vegetarian foods, to provide iron and proteins
required for the improvement of semen.
You have to follow some bed room recommendations as Have sex from 11th day of the period to 20th day. follow abstence in the first 10days. follow the male above position.
Wishing you a beautiful baby soon.thanks for calling.