When unable to receive Holy Communion, it is a pious practice to make a Spiritual Communion. Say the following prayer of St. Francis
I believe that You, O Jesus, are in the most holy Sacrament. I love You and desire You. Come into my heart. I embrace You. Never leave me. May the burning and most sweet power of Your love, O Lord Jesus Christ. I beseech You, absorb my mind that I may die through love of Your love, who were graciously pleased to die through love of my love.