The reasons behind Dembele's relapse

Ousmane Dembele missed the Copa del Rey 'Clasico' and La Liga clash against Girona after suffering a minor relapse. So far, the winger has no return date.
According to the daily 'Ara', the reasons for the French international to spend more time away from the pitch are the healing of his injury and Ramadan. Both factors are delaying the French striker's recovery.
The same media outlet reported that the treatment of not undergoing surgery is not working as expected by Barca's medical staff. This is due to the fact that the healing process has been very slow.
Another reason is Ramadan. The aforementioned information states that the Cules' nutritionists "believe that it is advisable to postpone his medical clearance until he can do a full week of preparation with normal eating habits".
For these reasons, Dembele is not yet an option for Xavi Hernandez, who wants to bring him back as soon as possible. However, the 'Cules' medical staff is asking for patience, as there is no date for his return.