He suffers from too many wet dreams; he wakes up and finds wetness but he does not remember having a dream
Question

                About five years ago, I started suffering from ejaculation and it makes my life difficult. When I wake up I find wetness but I do not remember that I had a wet dream. I might make ghusl to clear the impurity of a wet dream one night, and I find wetness next day. Do I have to make ghusl every time I find wetness? This might happen twice weekly. What is the solution for my problem?.
Praise be to Allah.If a person 
    wakes up and finds some wetness, one of three scenarios must apply: 
1-
He is 
    certain that it is maniy, in which case he must do ghusl, whether he 
    remembers having an erotic dream or not. 
2-
He is 
    certain that it is not maniy, in which case he does not have to do ghusl, 
    but he should wash whatever it got onto, because it comes under the same 
    ruling as urine. 
3-
He does not 
    know whether it is maniy or not. This is subject to further discussion: 

    (i)
    If he remembers 
    having an erotic dream whilst he slept, he should regard it as maniy and do 
    ghusl, because of the hadeeth of Umm Salamah (may Allaah be pleased with 
    her) when she asked the Prophet  (peace and blessings of Allaah be upon 
    him) about a woman who sees in her dream what a man sees – does she have to 
    do ghusl? He said: “Yes, if she sees water.” This indicates that it is 
    obligatory to do ghusl for one who has an erotic dream and sees water 
    (wetness).

    (ii)
    If he did not see 
    anything in his dream, if his sleep was preceded by thoughts of intercourse, 
    he should regard it as madhiy. If his sleep was not preceded by such 
    thoughts then there is a difference of scholarly opinion.  

    Some said that he should do ghusl so as to be 
    on the safe side.

    And some said that he does not have to do 
    ghusl, which is the correct view, because the basic principle is that a 
    person is as he originally was.
End quote 
    from Fataawa al-Tahaarah by Shaykh Ibn ‘Uthaymeen (may Allaah have 
    mercy on him), p. 221. 
The fuqaha’ 
    have stated that the smell of wet maniy is like the smell of dough or the 
    pollen of date palms, and the smell of dry maniy is like the smell of egg 
    whites. Mataalib Ooli al-Nuha (1/162). 
It makes no 
    difference whether that happens once or twice a week or more. Every time you 
    experience a wet dream you must do ghusl. You should not get worried because 
    this happens, because the reason for it may be that this is the nature of 
    the body, or some kinds of food, and so on. 
And Allaah knows best.