Healing is a miracle that is seen in both the Old and the New Testaments. Healing is a restoration. God can heal any sicknesses or disease. Jesus healed many people that came to Him and we see the Apostles continuing with this Spiritual Gift. Healing is for us today.
God promised healing.
Exodus 15:26 And said, If thou wilt diligently hearken to the voice of the LORD thy God, and wilt do that which is right in his sight, and wilt give ear to his commandments, and keep all his statutes, I will put none of these diseases upon thee, which I have brought upon the Egyptians: for I am the LORD that healeth thee.
Gifts of the Spirit are gifts that God gives to members of the body of Christ for edification of the Church.
1 Corinthians 12:7-12 7 But the manifestation of the Spirit is given to every man to profit withal. 8 For to one is given by the Spirit the word of wisdom; to another the word of knowledge by the same Spirit; 9 To another faith by the same Spirit; to another the gifts of healing by the same Spirit; 10 To another the working of miracles; to another prophecy; to another discerning of spirits; to another divers kinds of tongues; to another the interpretation of tongues: 11 But all these worketh that one and the selfsame Spirit, dividing to every man severally as he will. 12 For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ.
The Gifts of the Spirit are miraculous and fall within one of three categories: gifts of revelation, gifts of power, and gifts of utterance (Bernard, p. 86).